raceme

A simple inflorescence of pediceled flowers upon a common more or less elongated axis.

Meaning: With flowers in racemes
Latin Pronunciation: ray-see-mih-FLOR-uh

Latin Pronunciation: ras-em-if-f/oh-rus
Meaning: with flowers borne in racemes (types of elongated flower clusters).

Meaning: Having racemes (a type of flower cluster)
Latin Pronunciation: ray-see-MO-suh

racemiform

Refers to an inflorescence with the outward appearance of a raceme.

racemose

Resembling a raceme.

Meaning: With flowers in racemes
Latin Pronunciation: ray-see-mih-FLOR-um

Meaning: Having racemes (a type of flower cluster)
Latin Pronunciation: ray-see-MO-sum

rachilla

The axis of a spikelet, particularly in grasses.

Latin Pronunciation: ras - em - moh - sus
Meaning: with flowers in a type of elongated cluster (racemose) as compared to panicles, spikes, umbels, etc.

rachis

1. The main stalk of a flower cluster or the main leafstalk of a compound leaf. 2. In ferns, the continuation of the stipe through a compound frond.

Meaning: Named for Racine Foster, wife of American horticulturist Mulford Bateman Foster
Latin Pronunciation: ray-SEEN-ay-uh
Alternative Self-Pronouncing:ra-SEEN-ay-uh

Meaning: Named for Gustav Ferdinand Richard Radde, 19th century German naturalist who explored the Caucasus and Amur region
Latin Pronunciation: rad-dee-AN-uh

Meaning: Named for Racine Foster, wife of American horticulturist Mulford Bateman Foster
Latin Pronunciation: ray-SEEN-ay-ee

Meaning: Named for Gustav Ferdinand Richard Radde, 19th century German naturalist who explored the Caucasus and Amur region
Latin Pronunciation: rad-dee-AN-um

Meaning: Named for Gustav Ferdinand Richard Radde, 19th century German naturalist who explored the Caucasus and Amur region
Latin Pronunciation: rad-dee-AN-us

Meaning: Named for Gustav Ferdinand Richard Radde, 19th century German naturalist who explored the Caucasus and Amur region
Latin Pronunciation: RAD-dee-eye

Meaning: Named for Giusepe Raddi, 19th century Italian botanist who collected plants in Brazil and Egypt
Latin Pronunciation: rad-dee-AH-nuh
Alternative Self-Pronouncing:rad-dee-AY-nuh

Meaning: Named for Giusepe Raddi, 19th century Italian botanist who collected plants in Brazil and Egypt
Latin Pronunciation: rad-dee-AH-num
Alternative Self-Pronouncing:rad-dee-AY-num

Meaning: Named for Jacob Cornelis Matthias Radermacher, 18th century Dutch amateur botanist
Latin Pronunciation: rad-er-MOK-er-uh

Meaning: Named for Giusepe Raddi, 19th century Italian botanist who collected plants in Brazil and Egypt
Latin Pronunciation: rad-dee-AH-nus
Alternative Self-Pronouncing:rad-dee-AY-nus

Meaning: Named for Giusepe Raddi, 19th century Italian botanist who collected plants in Brazil and Egypt
Latin Pronunciation: RAD-dee-eye

radial

In flowers, one with the symmetry of a symmetry wheel.

Meaning: Radiating outward
Latin Pronunciation: RAD-ee-anz

Meaning: Spreading rays
Latin Pronunciation: rad-ee-AY-tuh

Latin Pronunciation: ray-dee-ay-tus
Meaning: with petals in rays, radiate (as with Daisies).

Meaning: Spreading rays
Latin Pronunciation: rad-ee-AY-tum

Meaning: Of or from a root (from the Latin radix, meaning root)
Latin Pronunciation: rad-ih-KAY-lee

Meaning: Of or from a root (from the Latin radix, meaning root)
Latin Pronunciation: rad-ih-KAY-lis

radical

Belonging to or proceeding from the root or base of the stem near the ground.

Latin Pronunciation: rad-ik-anz
Meaning: rooting (along stem).

Meaning: Rooted
Latin Pronunciation: rad-ee-KAY-tum
Alternative Self-Pronouncing:rad-ee-KAT-um

radiate

Spreading from or arranged around a common center; bearing ray flowers.

radicle

The portion of the embryo below the cotyledons that will form the roots, more properly called the caudicle.

Latin Pronunciation: rad - ik - kay - tus
Meaning: rooted (strongly).

radicles (alt. rhizoid)

Rootlets springing from the sides and base of the stem.

Meaning: Rooted
Latin Pronunciation: rad-ee-KAY-tuh
Alternative Self-Pronouncing:rad-ee-KAT-uh

Latin Pronunciation: rad - ik - koh - sus
Meaning: many rooted.

Meaning: Having many rays
Latin Pronunciation: ray-dee-OH-suh

radius (pl. radii)

1. The outermost flowers in a daisy-like head, Compositae; ray flowers as opposed to disc flowers. 2. The distance from the center of a circle to the outer edge, as from the heart of a tree to the bark.

Latin Pronunciation: rad-ik-um
Meaning: referring to roots.

Latin Pronunciation: ray-dee-oh-sus
Meaning: with many rays.

Meaning: Like a scraper
Latin Pronunciation: RAD-yoo-luh

Meaning: Having many rays
Latin Pronunciation: ray-dee-OH-sum

Meaning: Named for Ludwig Radlkofer, early 20th century Professor of Botany and Director of the Botanical Museum in Munich
Latin Pronunciation: rad-el-KO-fer-ee

raffia (alt. raphia)

A fiber-like material used for tying grafts and other horticultural purposes.

Meaning: Named for Sir Thomas Stamford Bingley Raffles, 19th century zoologist and founder of the British colony at Singapore
Latin Pronunciation: raf-FELZ-ee-uh

Meaning: Named for Sir Thomas Stamford Bingley Raffles, 19th century zoologist and founder of the British colony at Singapore
Latin Pronunciation: raf-felz-ee-AH-na

Meaning: Named for Constantine Samuel Rafinesque-Schmaltz, 19th century botanist and naturalist
Latin Pronunciation: raf-in-ess-kwi-AN-um

raised beach

An old beach terrace at an elevation above the present shoreline, representing a formerly higher lake level.

raised bed (syn. raised garden)

A bed or garden created by adding soil on top of that which is already present. This is usually done in cases where the underlying soil is particularly poor in nutrients or has inadequate drainage. Wooden or stone walls are often used to keep the added soil in place.

Meaning: Of or from Dubrovnik, Ragusa (renamed the Republica Ragusina in the 14th century) on the Mediterranean coast
Latin Pronunciation: rag-oo-SEE-nuh

ramble

To grow freely, often over another plant or structure.

rameal

Belonging to a branch.

ramentaceous

Refers to stems or leaves which have small, loose, brownish scales.

Latin Pronunciation: ram-en-tay-see-us
Meaning: with a hairy covering.

ramification

Branching.

ramet

1. An individual member of a clone. 2. An underground tree system giving rise to large suckering colonies, like big- tooth aspen trees,Populus grandentata.

Latin Pronunciation: ram - if - floh - rus
Meaning: with branching inflorescence (flowering

Meaning: Flowers borne on older stems
Latin Pronunciation: ram-ee-FLOR-uh

Meaning: Flowers borne on older stems
Latin Pronunciation: ram-ee-FLOR-us

ramiflorous

Bearing flowers directly from large branches and leafless twigs, but not on the trunk.

Meaning: Flowers borne on older stems
Latin Pronunciation: ram-ee-FLOR-um

Meaning: Of or from San Ramon, Costa Rica
Latin Pronunciation: ra-mon-EN-see

ramose

Having many branches.

ramiform

With branches; branch-like.

Meaning: Of or from San Ramon, Costa Rica
Latin Pronunciation: ra-mon-EN-sis

Meaning: Branched
Latin Pronunciation: ram-OH-suh

Meaning: More branched
Latin Pronunciation: ram-OH-see-or

Latin Pronunciation: ram-oh-siss-im-us
Meaning: much branched.

Meaning: Many branched
Latin Pronunciation: ram-oh-SIS-ee-muh

Meaning: Many branched
Latin Pronunciation: ram-oh-SIS-ee-mum

Meaning: More branched
Latin Pronunciation: ram-OH-see-us

ramuli

Minute branchlets.

Latin Pronunciation: ram-moh-sus
Meaning: branched.

Meaning: From the Latin ramulus (many small, veining branches or twigs)
Latin Pronunciation: ram-yoo-LOH-suh

Meaning: Branched
Latin Pronunciation: ram-OH-sum

Meaning: From the Latin ramulus (many small, veining branches or twigs)
Latin Pronunciation: ram-yoo-LOH-sum

rank

1. A vertical row, as of leaves. When you sight along the length of a branch from the tip end, if it appears there are two rows of leaves, either opposite or alternate, the branch is 2-ranked; if three rows, it is 3-ranked, etc. 2. In taxonomy, the position of a taxon in the hierarchy, e.g., species, genus, family, etc.

Meaning: Named for Isaac Rand, 18th century London apothecary and director of the Chelsea Physic Garden
Latin Pronunciation: RAND-ee-uh

ranch (alt. ranche, rancho)

1. In the united States and Canada, a farm that raises livestock, fruits, and vegetables for use of the family, or crops for feeding animals; sometimes used as a secondary income, e.g., a cattle ranch. 2. The buildings occupied or the persons on the estate (ranchers).

Meaning: An anagram of Aerangis, genus name of related orchid
Latin Pronunciation: ran-GEE-riss

Meaning: Named for M. Victor Rantonnet, 19th century French horticulturist in Hy?res, who reported on this plant for culinary purposes in Revue Horticole
Latin Pronunciation: ran-toh-NET-ee-eye
Alternative Self-Pronouncing:ran-toh-NAY-ee-eye

Meaning: The Ranunculus (buttercup) family
Latin Pronunciation: ra-nun-kew-LAY-see-ay

Meaning: Like Ranunculus (genus name meaning little frog)
Latin Pronunciation: ran-un-kew-LAY-see-a

Meaning: From the Latin ramulus (many small, veining branches or twigs)
Latin Pronunciation: ram-yoo-LOH-sus

range of variation

The extremes of possibilities which may occur within a species and still remain a member of that species, including such things as leaf shape, leaf margins, flower color, height, etc.

Meaning: Resembling Ranunculus (genus name meaning little frog)
Latin Pronunciation: ran-nun-kew-LEE-nuh

Meaning: Resembling Ranunculus (genus name meaning little frog)
Latin Pronunciation: ran-nun-kew-LEE-num

Meaning: Resembles Ranunculus
Latin Pronunciation: ra-nun-kul-OY-deez

Meaning: Resembling Ranunculus (genus name meaning little frog)
Latin Pronunciation: ran-nun-kew-LEE-nus

Latin Pronunciation: rap-pay-see-us
Meaning: Turnip-like.

Meaning: Like a turnip
Latin Pronunciation: rap-uh-SEE-uh
Alternative Self-Pronouncing:rap-uh-KEE-uh

Meaning: Like a turnip
Latin Pronunciation: rap-uh-SEE-um
Alternative Self-Pronouncing:rap-uh-KEE-um

Meaning: Latinized from the French Guiana vernacular name for this tree
Latin Pronunciation: ra-PAN-ee-uh

Meaning: From the Greek raphanis, ancient name for this vegetable, (meaning appears quickly)
Latin Pronunciation: raf-an-IS-trum

Meaning: Turnip
Latin Pronunciation: RAP-uh

Meaning: From the Greek raphia (needle), referring to the sharp fruit
Latin Pronunciation: RAF-ee-uh

raphe

The part of the funiculus that is fused along the side of the ovule.

Meaning: Variant spelling of Rhaphidophora, which is from the Greek rhaphis (needle) and phoros (carrying), referring to the needle-like points on the fruit
Latin Pronunciation: ra-fid-OH-for-a

Latin Pronunciation: rap-unk-yew-loy-deez
Meaning: with bell-like flowers.

raphides

Needle-like crystals of calcium oxalate that occur in bundles in some plant cells.

Meaning: From the Greek rhaphis (beet-root) and akme (sharpness); possibly referring to the taste of the roots
Latin Pronunciation: raf-ee-on-AK-mee

Meaning: Little turnip
Latin Pronunciation: ra-PUN-kyoo-lus

ratchet tool

One which uses mechanical means to multiply cutting or turning power, reducing cramping of hands and forearms.

Meaning: Scattered flowers
Latin Pronunciation: rar-ee-FLOR-uh

Meaning: Scattered flowers
Latin Pronunciation: rar-ee-FLOR-um

Latin Pronunciation: rayr-if-floh-rus
Meaning: loose- or scanty-flowered.

Meaning: Named after Werner Rauh, 20th century German professor of Botany at the University of Heidelberg, and plant collector
Latin Pronunciation: RAU-ee-eye

Latin Pronunciation: raw-kus
Meaning: raw (looking).

Meaning: Discovered by Walter Rausch, 20th century cactus collector in South America
Latin Pronunciation: ROWSH-ee-eye

Meaning: Named by Constantine Rafinesque-Schmaltz, a wandering botanist who often gave plants names with unexplained meanings; this is one of them
Latin Pronunciation: ruh-TIB-ih-duh

Latin Pronunciation: rayr-us
Meaning: uncommon.

Meaning: Derived from the vernacular name in Madagascar, its native habitat
Latin Pronunciation: ra-VEN-ee-uh

ravine

A depression worn by running water, larger than a gully and smaller than a valley.

ray floret

One of the broad, conspicuously colored florets of a compound flower, the structure of which suggests a single petal of an ordinary flower. These form the radiating border in the open-centered type dahlias, or massed together, the flower head in fully double types. See also: disc floret.

Meaning: Of Ravenna
Latin Pronunciation: ra-VEN-ay-ee

ray flower

The bilaterally symmetrical flowers around the edge of the head in many members of Compositae; each ray flower resembles a single petal.

rays

Radial strands of cells in wood and phloem.

ray

The branch of an umbel; the marginal flowers of an inflorescence when distinct from the disk.

Meaning: Named for Dr Rebaudi, 19th century Paraguayan chemist who extracted the sweet constituents from the plant
Latin Pronunciation: re-bawd-ee-AH-nuh

recalcitrant seed

Seed that does not survive drying and freezing.

Meaning: Named for Dr Rebaudi, 19th century Paraguayan chemist who extracted the sweet constituents from the plant
Latin Pronunciation: re-bawd-ee-AH-num

Meaning: Of or from Ana Rech, Caxias do Sul district in South America
Latin Pronunciation: rech-EN-sis

receptacular

Carried on the receptacle; pertaining to the receptacle.

receptacle

1. The more or less expanded or produced portion of an axis which bears the organs of a flower (the torus) or the collected flowers of a head, and in roses, enfolds the developing ovaries to form a hip. 2. Any similar structure in cryptogams.

recession

A drop in the water line of a body of water, with a corresponding exposure of the bottom.

Meaning: Reclined, leaning
Latin Pronunciation: rek-lin-AY-tuh

Latin Pronunciation: rek-lin-nay-tus
Meaning: bent backward.

Meaning: From the Latin, meaning to recognize or recollect
Latin Pronunciation: re-kog-NEE-ta

Meaning: Reclined, leaning
Latin Pronunciation: rek-lin-AY-tum

Meaning: From the Latin, meaning to recognize or recollect
Latin Pronunciation: re-kog-NEE-tum

Meaning: From the Latin recondere, meaning hidden, concealed, or stored away
Latin Pronunciation: rek-on--DY-tuh
Alternative Self-Pronouncing:rek-on--DEE-tuh

reclining

The lower portion somewhat flattened along the ground but the upper parts curving upward.

Meaning: From the Latin recondere, meaning hidden, concealed, or stored away
Latin Pronunciation: rek-on--DY-tus
Alternative Self-Pronouncing:rek-on--DEE-tus

Meaning: Erect
Latin Pronunciation: REK-tuh

Meaning: From the Latin recondere, meaning hidden, concealed, or stored away
Latin Pronunciation: rek-on--DY-tum
Alternative Self-Pronouncing:rek-on--DEE-tum

reclinate

Bent or turned downward.

Meaning: Having erect leaves
Latin Pronunciation: rek-tih-FOH-lee-uh

Meaning: Having erect leaves
Latin Pronunciation: rek-tih-FOH-lee-um

Meaning: From the Latin, meaning to recognize or recollect
Latin Pronunciation: re-kog-NEE-tus

Meaning: Erect
Latin Pronunciation: REK-tum

Latin Pronunciation: rek-tus
Meaning: straight, upright.

Meaning: Curved back
Latin Pronunciation: re-KUR-vuh

Meaning: Bent backwards
Latin Pronunciation: rek-er-VAY-tuh

Meaning: Having erect leaves
Latin Pronunciation: rek-tih-FOH-lee-us

Meaning: Bent backwards
Latin Pronunciation: rek-er-VAY-tum

Latin Pronunciation: rek-kur-vay-tus
Meaning: curved back (recurved).

recurved

Curved downward or backward; with ray florets curved backward along their length toward the stem.

Latin Pronunciation: rek-kur-vif-foh-lee-us
Meaning: backcurving leaves.

Meaning: Curved back
Latin Pronunciation: re-KUR-vum

Latin Pronunciation: rek-kurv-us
Meaning: curved back.

Meaning: Rebound, bounce back
Latin Pronunciation: re-KOO-tee-ta

Latin Pronunciation: red-iv-vye-vus
Meaning: literally, restored to life.

Meaning: Fragrant
Latin Pronunciation: RED-oh-lens
Alternative Self-Pronouncing:re-DOL-ens

Meaning: Brought back to life
Latin Pronunciation: re-div-EE-vuh

Meaning: Brought back to life
Latin Pronunciation: re-div-EE-vum

Meaning: Named for Redd, but not sure who
Latin Pronunciation: RED-ee-eye

Meaning: Dwarf is it's botanical meaning, literally - reduce or drawn back
Latin Pronunciation: red-uk-tum

Latin Pronunciation: red-dew-plik-kay-tus
Meaning: re

reeds

Tall thin wetland plants of the generaPhragmites andSparganium; a term often incorrectly applied to bulrushes.

Meaning: Named for John Reeves, 19th century tea inspector at Macao and Canton; he was instrumental in introducing many Chinese plants to British gardens
Latin Pronunciation: reeves-ee-AY-nuh

Meaning: Named for John Reeves, 19th century tea inspector at Macao and Canton; he was instrumental in introducing many Chinese plants to British gardens
Latin Pronunciation: reeves-ee-AY-num

Meaning: Dwarf is it's botanical meaning, literally means reduce or drawn back
Latin Pronunciation: red-uk-tuss

reel mower

A grass- cutting tool on which helical blades spin against a flat surface, generally hand powered but may be mechanized for a more precise cut than rotary mowers.

Meaning: Dwarf is it's botanical meaning, literally means reduce or drawn back
Latin Pronunciation: Red-uk-ta

reference

A citation to a source of information, such as a written document.

Meaning: Named for John Reeves, 19th century tea inspector at Macao and Canton; he was instrumental in introducing many Chinese plants to British gardens
Latin Pronunciation: reeves-ee-AY-nus

Meaning: Bent backwards
Latin Pronunciation: ree-FLEKS-uh

Meaning: Bent backwards
Latin Pronunciation: ree-FLEKS-us

Latin Pronunciation: ref-flex-us
Meaning: bent back (reflex).

Meaning: Broken
Latin Pronunciation: ray-FRAK-tum

reflexed

Abruptly bent or turned downward.

Meaning: Bent backwards
Latin Pronunciation: ree-FLEKS-um

Meaning: Broken
Latin Pronunciation: ray-FRAK-tuh

Latin Pronunciation: ref-frak-tus
Meaning: broken.

Latin Pronunciation: ref - fulj - enz
Meaning: shining brightly.

refrigerants

Herbal preparations which cool the body.

Meaning: Variant spelling of refugioensis, meaning of or from Refugio, in southeastern Texas; the name means refuge
Latin Pronunciation: ref-yooj-ee-EN-sis

Meaning: Named for Eduard August von Regel, 19th century German botanist and superintendent of the botanic garden at St. Petersburg, Russia
Latin Pronunciation: reg-EL-ee-uh
Alternative Self-Pronouncing:re-JEE-lee-uh

Meaning: Regal; outstanding merit
Latin Pronunciation: re-GAY-lee
Alternative Self-Pronouncing:re-GAY-lay

Meaning: Of or from Refugio, in southeastern Texas; the name means refuge
Latin Pronunciation: ref-yooj-ee-oh-EN-sis

Latin Pronunciation: reg-gay-liss
Meaning: majestic, regal.

Meaning: Named for Eduard August von Regel, 19th century German botanist and superintendent of the botanic garden at St. Petersburg, Russia
Latin Pronunciation: reg-el-ee-AH-num
Alternative Self-Pronouncing:ree-jee-lee-AH-num

Meaning: Named for Eduard August von Regel, 19th century German botanist and superintendent of the botanic garden at St. Petersburg, Russia
Latin Pronunciation: reg-el-ee-AH-na
Alternative Self-Pronouncing:ree-jee-lee-AH-na

Meaning: Named for Eduard August von Regel, 19th century German botanist and superintendent of the botanic garden at St. Petersburg, Russia
Latin Pronunciation: reg-el-ee-AH-num
Alternative Self-Pronouncing:ree-jee-lee-AH-nus

Meaning: Queenly
Latin Pronunciation: ree-JIN-nee-uh

Meaning: Named for Queen Olga of Greece, 19th century monarch and grandmother to Prince Philip
Latin Pronunciation: ree-JIN-ay OL-ga

Latin Pronunciation: ree-jin-nus
Meaning: kingly (royal), regal.

Meaning: Royal
Latin Pronunciation: REE-jee-uh

Meaning: Queenly
Latin Pronunciation: ree-JIN-nee-ee

Latin Pronunciation: rej-jye-nee
Meaning: referring to a queen (royal).

Meaning: Named for Regnell, but not sure who
Latin Pronunciation: reg-NEL-ee-eye

Meaning: Royal
Latin Pronunciation: REE-jee-us

regular

Uniform in shape or structure.

rehabilitation

The process of improving specific ecosystem factors in a degraded habitat.

Meaning: Royal
Latin Pronunciation: REE-jee-um

Meaning: Named for Alfred Rehder, 20th century German-born American dendrologist and author working at the Arnold Arboretum in Massachusettes (U.S.) until his retirement
Latin Pronunciation: re-der-ee-AH-na

Meaning: Named for Alfred Rehder, 20th century German-born American dendrologist and author working at the Arnold Arboretum in Massachusettes (U.S.) until his retirement
Latin Pronunciation: re-der-ee-AH-num

Meaning: Named for Joseph Rehmann, 19th century Russian physician
Latin Pronunciation: re-MAN-ee

Meaning: Named for Alfred Rehder, 20th century German dendrologist and author working at the Arnold Arboretum in Massachusettes (U.S.) until his retirement
Latin Pronunciation: REH-der-eye

Meaning: Named for Alfred Rehder, 20th century German-born American dendrologist and author working at the Arnold Arboretum in Massachusettes (U.S.) until his retirement
Latin Pronunciation: re-der-ee-AH-nus

regular flower

Generally symmetrical and uniform in the number of its parts.

Meaning: Named for Joseph Rehmann, 19th century Russian physician
Latin Pronunciation: re-MAN-ee-eye

Meaning: Named for Heinrich Gottlieb Ludwig Reichenbach, 19th century German botanist, ornithologist, author and botanical artist
Latin Pronunciation: ry-ken-BAHK-ee-eye

Meaning: Named for Heinrich Gustav Reichenbach, 19th century Orchid specialist
Latin Pronunciation: rike-en-bak-ee-AH-na

Meaning: Named for Johann Jakob Reichard, 18th century German
Latin Pronunciation: ri-KAR-dee-eye

Meaning: Named for Eduard Martin Reineck, 20th century Australian plant collector
Latin Pronunciation: ry-NEK-ee-a

Meaning: Named for Caspar Reinwardt, 19th century Dutch naturalist and biologist
Latin Pronunciation: rine-WARD-tee-eye
Alternative Self-Pronouncing:rain-WARD-tee-eye

rejuvenation pruning

The practice of cutting all the main stems of a shrub back to within half-inch of the ground during winter dormancy.

relict (alt. relic)

A species or other group within a community that is representative of an earlier stage of development or of a different set of conditions.

Meaning: Named for FW Reitz, 19th century president in South Africa
Latin Pronunciation: RITZ-ee-eye

relict (alt. relic)

A species or other group within a community that is representative of an earlier stage of development or of a different set of conditions.

relief

The difference in elevation between the highest point and the lowest point of land in a specified region.

Latin Pronunciation: rel-lij-ee-oh-sus
Meaning: venerable; also referring to religious uses, sacred.

Meaning: Remote - as in remote places, scattered
Latin Pronunciation: ree-MOH-tuh

Meaning: Sacred
Latin Pronunciation: re-lij-ee-OH-sum

reliction

The exposure of a lake's bottom by natural recession. Relicted shores rarely contain vegetation.

Meaning: Flowers apart from each other, presumably on stems
Latin Pronunciation: re-mo-tee-FLOR-uh

remontant

Able to rebloom one or more times during a single growing season.

remote

Distant, at the farthest end.

Meaning: Flowers apart from each other, presumably on stems
Latin Pronunciation: re-mo-tee-FLOR-us

Meaning: Flowers apart from each other, presumably on stems
Latin Pronunciation: re-mo-tee-FLOR-um

Meaning: Sacred
Latin Pronunciation: re-lij-ee-OH-suh

Latin Pronunciation: rem-moh-tus
Meaning: with widely separated parts.

Meaning: Remote foliage (referring to the leaves' distance from one another)
Latin Pronunciation: ree-moh-tih-FOH-lee-um

Meaning: Remote foliage (referring to the leaves' distance from one another)
Latin Pronunciation: ree-moh-tih-FOH-lee-a

Meaning: Named for Charles Claude Renard
Latin Pronunciation: ren-AR-dee-eye

Meaning: Aboriginal name for Palm
Latin Pronunciation: REN-duh

Meaning: Remote - as in remote places, scattered
Latin Pronunciation: ree-MOH-tum

Meaning: Named for Jean Pierre Abel-Remusat, an 18th century French Chinese scholar and botanist
Latin Pronunciation: rem-yoo-SAT-ee-uh

Meaning: Kidney-leaved
Latin Pronunciation: ren-ee-FOH-lee-uh

Meaning: Remote foliage (referring to the leaves' distance from one another)
Latin Pronunciation: ree-moh-tih-FOH-lee-us

Meaning: Kidney-leaved
Latin Pronunciation: ren-ee-FOH-lee-um

renewal pruning

The practice of cutting all the main stems of a shrub back to within half-inch of the ground during winter dormancy.

Meaning: Kidney-leaved
Latin Pronunciation: ren-ee-FOH-lee-us

Meaning: Kidney shaped
Latin Pronunciation: ren-ih-FOR-me

reniform

Kidney-shaped.

Latin Pronunciation: ren-if-form-iss
Meaning: kidney- shaped (reniform).

Meaning: Has wavy edges, wavy leaf margins
Latin Pronunciation: REP-an-duh

Meaning: Has wavy edges, wavy leaf margins
Latin Pronunciation: REP-an-dum

Latin Pronunciation: rep-pan-denz
Meaning: wavy-margined.

repand

With a slightly uneven and somewhat sinuate margin.

Latin Pronunciation: ree-penz
Meaning: creeping.

Meaning: Has wavy edges, wavy leaf margins
Latin Pronunciation: REP-an-dus

repellent

A substance used to keep insects or animals from an area.

Meaning: Turned or folded back on itself
Latin Pronunciation: rep-lee-KAY-ta

replicates

Duplicate specimens.

repent (alt. repen, syn. reptant)

Creeping; prostrate and rooting at the nodes.

Meaning: Creeping; also spelled reptans
Latin Pronunciation: REP-tenz

Meaning: Turned or folded back on itself
Latin Pronunciation: rep-lee-KAY-tum

replum

The hardened framework of the placenta which remains when the outer walls or valves of a silique fall away; the septum which holds the seeds.

Latin Pronunciation: repp-tanz
Meaning: creeping.

biotic potential (syn. reproductive potential, syn. breeding potential)

The natural capacity of an organism to survive and reproduce, which is slowed or controlled by environmental resistance.

Meaning: Named for Esprit Requien, 19th century French botanist
Latin Pronunciation: re-kwee-EN-ee-eye

Latin Pronunciation: ress-sekk-tus
Meaning: cut-off (or seemingly so).

Meaning: Named for Esprit Requien, 19th century French botanist
Latin Pronunciation: re-KWEE-en-eye

resiniferous

Producing resin.

resin

A plant secretion, often aromatic, that is insoluble in water but soluble in ether or alcohol.

Meaning: Bearing resin
Latin Pronunciation: res-in-EE-fer-uh

Meaning: Bearing resin
Latin Pronunciation: res-in-EE-fer-um

resinous

Coated with a sticky gum or resin.

Latin Pronunciation: rez-in-niff-er-us
Meaning: producing resin.

Meaning: Resinous
Latin Pronunciation: res-in-OH-suh

Meaning: Flowing resin
Latin Pronunciation: res-in-IF-floo-a
Alternative Self-Pronouncing:res-in-ih-FLOO-a

resin dot

Tiny circular or globular yellow spots, usually not obvious except under magnification.

Latin Pronunciation: rez-in-noh-sus
Meaning: having resin (resinous).

Meaning: Resinous
Latin Pronunciation: res-in-OH-sum

Meaning: From the Latin, restis (cord or rope), referring to a common use for the plant
Latin Pronunciation: RES-tee-oh

resupinate

Turned upside down.

Meaning: From the Latin resupinare (to turn back), inverted or upside-down
Latin Pronunciation: ree-soo-peh-NAH-ta
Alternative Self-Pronouncing:reh-soo-pin-AY-ta

restoration

The return of an ecosystem or habitat to its original structure, natural complement of species, and natural functions.

Meaning: From the Latin resupinare (to turn back), inverted or upside-down
Latin Pronunciation: ree-soo-peh-NAH-tus
Alternative Self-Pronouncing:reh-soo-pin-AY-tus

Meaning: From the Latin resupinare (to turn back), inverted or upside-down
Latin Pronunciation: ree-soo-peh-NAH-tum
Alternative Self-Pronouncing:reh-soo-pin-AY-tum

retardants

Admixtures that increase the setting time of cement by slowing down hydration.

resupine

Refers to a flower or leaf on which the stalk twists a full half turn, 180 degrees, so that the organ appears to be upside down.

retentive sepals

Sepals that remain attached to the apex of the receptacle after it has ripened into a hip.

Meaning: Netted
Latin Pronunciation: reh-tick-yoo-LAY-tuh

Meaning: Latanized form of the Arabic name retem
Latin Pronunciation: re-TAM-uh

Meaning: Netted
Latin Pronunciation: re-tik-yoo-LAY-riss

reticulate

In the form of network; netveined.

reticulation

The entire network of reticulate veins, ribs, coloring and/or fibers.

Latin Pronunciation: ret-ik-yew-lay-tus
Meaning: netted, net-veined (reticulate).

reticulum (pl. reticula)

A mesh-like network.

Meaning: Netted
Latin Pronunciation: reh-tick-yoo-LAY-tum

retinaculum

The structure by which another structure is attached to a plant.

Meaning: Bent backwards
Latin Pronunciation: ret-roh-FLEKS-uh

Latin Pronunciation: ret-tort-us
Meaning: twisted back.

Meaning: Twisted back
Latin Pronunciation: re-TOR-tuh

Meaning: Twisted back
Latin Pronunciation: re-TOR-tum

Meaning: Bent backwards
Latin Pronunciation: ret-roh-FLEKS-um

Latin Pronunciation: ret-roh-flex-us
Meaning: bent backward.

Meaning: Reflexed
Latin Pronunciation: re-troh-FRAK-tuh

retrorse

Directed back or downward.

Meaning: Reflexed
Latin Pronunciation: re-troh-FRAK-tus

Meaning: Reflexed
Latin Pronunciation: re-troh-FRAK-tum

retting

Soaking plant tissue so as to induce bacterial growth that will aid in the separating of the fibers.

Meaning: Rounded and notched tip
Latin Pronunciation: re-TOO-suh

retuse

With a shallow notch at a rounded apex.

Meaning: Rounded and notched tip
Latin Pronunciation: re-TOO-sum

Latin Pronunciation: ret - tew - sus
Meaning: notched (at apex).

Meaning: Named for Julien Reverchon, 19th century French immigrant to Texas and avid plant collector
Latin Pronunciation: rev-er-SHON-ee-eye

revolute

Rolled backward from the margins or apex; describing a ray floret with margins rolled backward along their longitudinal axis. See also: fully revolute.

Meaning: Rolled back from margins or apex
Latin Pronunciation: re-vo-LOO-tuh

Latin Pronunciation: rev-verss-us
Meaning: reversed.

Meaning: Rolled back from margins or apex
Latin Pronunciation: re-vo-LOO-tum

reversion

When a genetically differentiated plant or sport reverts to normal growth. For instance, variegated leafs turn green.

Latin Pronunciation: rev-ol-lew-tus
Meaning: rolled back (revolute).rex
Meaning: the King.

Meaning: King
Latin Pronunciation: reks

Meaning: An interspecific hybrid of rex (meaning king) and cultorum (cultivated)
Latin Pronunciation: reks kul-TOR-um

Meaning: Named for AA Reynaud, French botanist and forester
Latin Pronunciation: rey-NAUD-ee-a

Meaning: Named for Dr. Gilbert Westacott Reynolds, early 20th century collector of and authority on the genus Aloe in South Africa
Latin Pronunciation: rey-NOLDS-ee-eye

Meaning: From the Greek rhabdos (rod) and adenos (gland)
Latin Pronunciation: rab-da-DEE-nee-a

Meaning: An old name for Rhubarb, possibly derived from a word for the Volga region and foreign
Latin Pronunciation: ra-BAR-buh-rum

Meaning: Striped, with a rod-like marking
Latin Pronunciation: rab-DOH-tuh

Meaning: Named for AA Reynaud, French botanist and forester
Latin Pronunciation: rey-naud-ee-AH-na

Meaning: Striped, with a rod-like marking
Latin Pronunciation: rab-DOH-tus

rhachilla

A secondary axis; specifically, in the grasses and sedges, the floral axis as opposed to that of the spike or spikelet.

rhachis

The axis of a spike or of a compound leaf.

Meaning: Striped, with a rod-like marking
Latin Pronunciation: rab-DOH-tum

Meaning: From the Greek rhagos (berry); referring to the fruit
Latin Pronunciation: ra-GO-dee-uh

Latin Pronunciation: ram - noy - deez
Meaning: Buckthorn-like.

rhape

The ridge or adnate funicle which in an anatropous ovule connects the two ends.

rhaphides

Needle-shaped crystals often occurring in bundles within the cells of certain plants.

Meaning: From the Greek rhaphis (needle) and phoros (carrying), referring to the needle-like points on the fruit; also spelled Raphidophora
Latin Pronunciation: ra-fid-OH-for-a

Meaning: From the Greek rhaphis (needle) and lepis (scale), referring to the narrow bracteoles
Latin Pronunciation: raf-ee-oh-LEP-iss

Meaning: Named for Abu Bekr-er-Rasi, first century Arabian physician
Latin Pronunciation: RAZ-yuh

Meaning: Resembling the Rhipsalis genus
Latin Pronunciation: rip-sal-li-DOP-sis

Meaning: Having a rhizome (long root)
Latin Pronunciation: ry-ZO-ma-ta

Meaning: Resembling Rhipsalis
Latin Pronunciation: rip-sal-OY-deez

Latin Pronunciation: ram-nif-foh-lee-us
Meaning: with leaves like the Buckthorn (Rhamnus).

Meaning: From the Greek rehektos (penetrable) and phyllon (leaf), referring to the perforated leaves
Latin Pronunciation: rek-to-FIL-lum

rhizobia

Bacteria in a symbiotic relationship with leguminous plants that results in nitrogen fixation.

rhizines

Strands of hyphae found on the lower surface of many foliose lichens.

Meaning: Has rhizomes
Latin Pronunciation: ry-zo-mat-OH-suh

Meaning: Has rhizomes
Latin Pronunciation: ry-zo-mat-OH-sum

rhizomatous

Having or appearing to have rhizomes.

Meaning: Having a rhizome (long root)
Latin Pronunciation: ry-ZO-ma-tus

rhizome chaff

Small pieces of rhizomes which are spread upon the ground and covered with soil so they can take root and form new plants.

Meaning: Has rhizomes
Latin Pronunciation: ry-zo-mat-OH-sus

rhizome cutting

A piece cut from a rhizome which can take root and form a new plant.

Meaning: Having a rhizome (long root)
Latin Pronunciation: ry-ZO-ma-tum

rhizomorph

A branched strand of fungus that looks like a root.

Meaning: Similar to plants of the genus Rhizophora, featuring aerial roots and living in mangrove areas
Latin Pronunciation: ree-ZOH-for-eh

rhizome (syn. rootstock, syn. understock, adj. rhizomatous)

Any prostrate or subterranean stem, usually rooting at the nodes and becoming erect at the apex.

Meaning: Bearing roots, referring to the typical aerial roots.
Latin Pronunciation: ree-ZOH-for-uh

Meaning: Leaves that can root
Latin Pronunciation: ry-zo-FIL-um

Latin Pronunciation: rye - zoh - fin- us
Meaning: root- leaved (stemless).

Meaning: Named for Rhodanthe, a beautiful woman in Greek mythology, who Diana turned into a rose; literally means rose flower
Latin Pronunciation: rho-DAN-thee

Meaning: Leaves that can root
Latin Pronunciation: ry-zo-FIL-uh

rhizosphere

The area that surrounds and is influenced by a plant's roots.

Meaning: With rose-colored flowers
Latin Pronunciation: rho-DAN-tha

Meaning: With rose-colored flowers
Latin Pronunciation: rho-DAN-thum

Meaning: Diminutive of the Latin rhudon (rose), referring to the rose-scented roots
Latin Pronunciation: ROD-ee-oh-luh

Latin Pronunciation: roh-danth-us
Meaning: Rose-flowered.

Latin Pronunciation: roh-dok-kye-lus
Meaning: Rose- lipped.

Meaning: Prefix meaning red coloured
Latin Pronunciation: roh-doh

Latin Pronunciation: roh-doh-sink-tus
Meaning: red- girdled.

Meaning: Red cloak
Latin Pronunciation: roh-doh-KY-ton

Latin Pronunciation: roh-doh-new-rus
Meaning: red- veined.

Meaning: From the Greek rhodo (red) and Hypoxis (a related genus name)
Latin Pronunciation: roh-doh-hy-POKS-iss

Meaning: From the Greek rhodo (red) and Latin phiala (flat-bottom drinking vessel, saucer)
Latin Pronunciation: roh-doh-FY-al-luh

Meaning: Of or from the Rhodope Mountains in southern Bulgaria
Latin Pronunciation: roh-doh-PEN-sis

Meaning: Red seeded
Latin Pronunciation: roh-doh-SPER-mum

Meaning: From the Greek rhodos (rose), and lirion (lily)
Latin Pronunciation: ro-do-LEER-ee-on

Meaning: Red seeded
Latin Pronunciation: roh-doh-SPER-mus

Meaning: Red seeded
Latin Pronunciation: roh-doh-SPER-muh

Meaning: Red hairs
Latin Pronunciation: roh-doh-TRY-kuh

Meaning: From the Greek for red
Latin Pronunciation: ROH-ee-as

rhombic

Diamond-shaped.

Meaning: Rhomboid; diamond shaped
Latin Pronunciation: rom-BY-kuh

Meaning: Possibly from the Latin rhoicus (belonging to Sumac or Rhus genus) and cissus (ivy)
Latin Pronunciation: roh-ih-KISS-us
Alternative Self-Pronouncing:roy-KISS-us

Meaning: Rhomboid; diamond shaped
Latin Pronunciation: rom-BY-kus

Meaning: Rhomboid; diamond shaped
Latin Pronunciation: rom-BY-kum

Meaning: Leaves in a diamond shape
Latin Pronunciation: rom-bif-OH-lee-um

Meaning: Diamond-shaped
Latin Pronunciation: rom-BIF-for-me

Meaning: From Latin rhombus (a parallelogram with sides of equal length) and petala (petalled)
Latin Pronunciation: rom-bi-puh-TAH -la
Alternative Self-Pronouncing:rom-bi-puh-TAY-la

Latin Pronunciation: rom-bif-foh-lee-us
Meaning: with rhomboid leaves.

Meaning: Diamond-shaped
Latin Pronunciation: rom-BIF-for-miss

Meaning: Diamond-shaped
Latin Pronunciation: rom-BOY-dee-uh

Meaning: Rhomboid; diamond-shaped
Latin Pronunciation: rom-BOYD-al-ee

rhomboid

Refers to leaves, tepals, etc., which are diamond-shaped, with the base and tip having acute angles and the sides having obtuse angles.

Meaning: Leaves in a diamond shape
Latin Pronunciation: rom-bif-OH-lee-uh

Meaning: Rhomboid; diamond-shaped
Latin Pronunciation: rom-BOYD-al-iss

Meaning: Diamond-shaped
Latin Pronunciation: rom-BOY-dee-um

Latin Pronunciation: rom-boy-dee-us
Meaning: rhomboidal (quadrilateral with only opposite sides and angles equal).

Meaning: From the Greek rhynchos (beak), referring to the keel of the flowers
Latin Pronunciation: rin-KOH-see-a

Meaning: Beaked scales (referring to glumes and lemmas)
Latin Pronunciation: rin-KEL-ee-trum
Alternative Self-Pronouncing:rinch-EL-ee-trum

Meaning: From the Greek rhytidos (wrinkle, fold) and kaulos (stem); referring to the sculptured appearance of the stems
Latin Pronunciation: ry-tid-oh-KAW-lon

Meaning: From the Greek rhynchus (beak) and spora (seed)
Latin Pronunciation: RIN-koh-SPOR-uh
Alternative Self-Pronouncing:RINCH-oh-SPOR-uh

Meaning: From the Greek rhynchos (beak) and stylis (small pillar), referring to the beaked column of these plants
Latin Pronunciation: rin-koh-STY-liss
Alternative Self-Pronouncing:rinch-oh-STY-liss

Meaning: Wrinkled leaves
Latin Pronunciation: ry-ti-do-FIL-uh

Meaning: Wrinkled leaves
Latin Pronunciation: ry-ti-do-FIL-um

Meaning: Wrinkled tongue
Latin Pronunciation: ry-ti-GLOSS-uh

Meaning: Wrinkled leaves
Latin Pronunciation: ry-ti-do-FIL-us

Meaning: Wrinkled tongue
Latin Pronunciation: ry-ti-GLOSS-um

Meaning: Wrinkled tongue
Latin Pronunciation: ry-ti-GLOSS-us

rib

A primary or prominent vein of a leaf.

ribbed

With one or more prominent veins or nerves.

Meaning: From the Arabic name for a shrub with acidic fruit
Latin Pronunciation: REE-bees

Meaning: Named for Ricasoli (either a person or the area)
Latin Pronunciation: rik-uh-sol-ee-AH-nuh

ribs

Geologic ridges running parallel, as often occurs along a mountain side.

Meaning: Named for Richard Richardson, 18th century English physician and botanist
Latin Pronunciation: rich-AR-dee-uh

Meaning: Resembling Ricinus (Castor Bean)
Latin Pronunciation: riss-in-ee-AY-tus

Meaning: Named for Richard Richardson, 18th century English botanist; or for Sir John Richardson, 18th century English explorer
Latin Pronunciation: rich-ard-SON-ee-eye

Meaning: Resembling Ricinus (Castor Bean)
Latin Pronunciation: riss-in-ee-AY-tuh

Meaning: Named for Claude Antoine Gaspar Riche, 18th century French naturalist on the D'Entrecasteaux voyage
Latin Pronunciation: REE-shee-uh

Meaning: Having leaves like Ricinus (Castor Bean)
Latin Pronunciation: riss-in-ih-FOH-lee-uh

Latin Pronunciation: riss-in-if-foh-lee-us
Meaning: with leaves like Castor-oil plant Ricinus).

Meaning: From Ricinus (a Mediterranean sheep tick) and karpos (fruit); also spelled Ricinocarpus
Latin Pronunciation: riss-in-oh-KAR-pos

Meaning: From Ricinus (a Mediterranean sheep tick) and karpos (fruit); also spelled Ricinocarpos
Latin Pronunciation: riss-in-oh-KAR-pus

Meaning: Having leaves like Ricinus (Castor Bean)
Latin Pronunciation: riss-in-ih-FOH-lee-um

ridged

Angular, with lengthwise lines.

Meaning: Named for John Leonard Riddell, 19th century author of Catalogus Florae Ludovicianae
Latin Pronunciation: rid-DEL-ee-eye

Meaning: Somewhat rigid
Latin Pronunciation: rig-ES-enz

right of way

A strip of land across another person's property, legally designated for owners of landlocked property to enter their holdings.

Latin Pronunciation: rye-jenz
Meaning: stiff, rigid.

Meaning: Stiffer or rather stiff
Latin Pronunciation: ri-JEH-de-or

Meaning: Very rigid, most rigid
Latin Pronunciation: rig-id-ISS-ih-muh

Meaning: Rigid
Latin Pronunciation: RIG-ih-duh

Meaning: Very rigid, most rigid
Latin Pronunciation: rig-id-ISS-ih-mus

Meaning: Very rigid, most rigid
Latin Pronunciation: rig-id-ISS-ih-mum

Meaning: Somehwat rigid
Latin Pronunciation: rig-ID-yoo-la

Latin Pronunciation: rij-jid-yew-lus
Meaning: somewhat stiff.

Meaning: Somehwat rigid
Latin Pronunciation: rig-ID-yoo-lum

Meaning: Rigid
Latin Pronunciation: RIG-ih-dum

Meaning: Full of cracks or fissures
Latin Pronunciation: rim-OH-sa

Latin Pronunciation: rij-id-us
Meaning: stiff.

rind

1. The bark of a tree outside the cambium layer. 2. The epicarp of a citrus fruit, e.g., an orange or a lemon.

Latin Pronunciation: rin-jenz
Meaning: gaping (ringent).

ringed

Having narrow encircling stipule scars around leaf scars.

ring scar

A ring-like scar left on a twig after a leaf drops.

Meaning: Named for Alfred Riocreux, 19th century French botanical artist
Latin Pronunciation: ree-oh-KREW-ee-uh

Meaning: Of or from the Rio Grande, a river and valley which marks the boundary between the U.S. state of Texas and Mexico
Latin Pronunciation: ree-oh-grand-EN-sis

Meaning: Of riverbanks
Latin Pronunciation: rip-AR-ee-uh

Meaning: Of or from the Rio Grande, a river and valley which marks the boundary between the U.S. state of Texas and Mexico
Latin Pronunciation: ree-oh-GRAND-is

ringent

Gaping, as the mouth of an open bilabiate corolla.

Meaning: Of or from the Rio Grande, a river and valley which marks the boundary between the U.S. state of Texas and Mexico
Latin Pronunciation: ree-oh-GRAND-ee

riparian

Of, or relating to, rivers or streams.

Latin Pronunciation: rip - pay - ree - us
Meaning: of river banks.

Meaning: Of riverbanks
Latin Pronunciation: rip-AR-ee-um

ripening

1. The maturing of a fruit as developmental changes prepare it for seed dispersal. 2. The hardening of wood, especially of soft twigs, important in taking cuttings for propagation.

Meaning: From the Greek: rhips (wickerwork) and gonia (corner or joint) in reference to the many-jointed stalks, giving the plants the common name Supplejacks
Latin Pronunciation: rip-OG-oh-um

Meaning: Named for Friedrich Ritter, early 20th century German cactus collector
Latin Pronunciation: RIT-ter-ee

Meaning: Derivation is obscure; possibly an old name for a plant with thorns (the plant was introduced to cultivation from western Europe and Asia in the mid-1600s)
Latin Pronunciation: RIH-tro
Alternative Self-Pronouncing:REE-tro

risers

The up and down sections of stair steps; necessary for landscape plans.

Meaning: Named for Friedrich Ritter, early 20th century German cactus collector
Latin Pronunciation: rit-ter-ee-AY-num

Meaning: Named for Riumin, president of the Moscow Horticultural Society
Latin Pronunciation: ryoom-in-ee-AH-na

Meaning: Named for Friedrich Ritter, early 20th century German cactus collector
Latin Pronunciation: rit-ter-ee-AY-nuh

Meaning: Growing by streams
Latin Pronunciation: riv-AY-lee

Latin Pronunciation: riv-vay-liss
Meaning: of brooks.

rivermouth

The place where a river empties into another body of water.

riverine

Refers to a river.

Meaning: Named for August Quirinus Rivinus (aka August Quirinus Bachmann), 17th century professor of botany at Leipzig
Latin Pronunciation: riv-VEE-nee-uh
Alternative Self-Pronouncing:riv-VIN-ee-uh

Meaning: Named for August Quirinus Bachmann, (Latinised to Augustus Quirinus Rivinus), 17th century German botanist and anatomist
Latin Pronunciation: riv-in-ee-AH-nuh

Latin Pronunciation: riv-yew-/ay-riss
Meaning: growing by brooks.

Meaning: Found growing beside brooks
Latin Pronunciation: riv-yoo-LAIR-ee

Meaning: Of or from Roane Mountain (U.S.)
Latin Pronunciation: roh-ah-NEN-sis

Meaning: Named for John George Robertson, 19th century plant collector for Kew
Latin Pronunciation: rob-ert-SON-ee-eye

Meaning: Named after a Robert (there are several candidates for the honour)
Latin Pronunciation: roh-bert-ee-AH-num

Meaning: Named for William Robinson, 20th century British gardener, explorer and author, revered as the Father of the English Flower Garden
Latin Pronunciation: rob-in-son-ee-AH-na

Meaning: Strength, oak wood
Latin Pronunciation: ROH-bur

Meaning: Robust
Latin Pronunciation: roh-BUS-tuh

Meaning: Robust spines
Latin Pronunciation: roh-bus-tih-SPIN-uh

Latin Pronunciation: roh-bus-tiss-spye-nus
Meaning: stout-spined.

Meaning: Named by Adrien Rene Franchet and Paul Amadee Ludovic Savatier, derivation is obscure
Latin Pronunciation: ro-shay-broo-nee-AY-um
Alternative Self-Pronouncing:ro-kee-broo-nee-AH-num

Meaning: Robust
Latin Pronunciation: roh-BUS-tum

Latin Pronunciation: roh-bust-us
Meaning: sturdy, stout.

Meaning: Robust
Latin Pronunciation: roh-BUS-tee-us

Meaning: Robust
Latin Pronunciation: roh-BUS-tee-um

Meaning: Named for Joseph Francis Charles Rock, 20th century Austrian-born American plant hunter in China and Hawaii
Latin Pronunciation: ROK-ee-eye

rock garden

A garden laid out among rocks and adapted for the growth of particular kinds of plants, such as alpines.

Meaning: Named for Manuel Rodriguez, 18th century Spanish physician and botanist
Latin Pronunciation: rod-ree-GEE-zee-uh

Meaning: Named for Carl Roebelen (Roebelin), who discovered the species
Latin Pronunciation: roh-bel-EN-ee-eye

Meaning: Variant spelling of roebelenii, named for Carl Roebelen (Roebelin), who discovered the species
Latin Pronunciation: roh-bel-EN-ee-eye

Meaning: Named for G. Roelle, 18th century professor of anatomy in Amsterdam
Latin Pronunciation: roh-EL-luh

Meaning: Named for collector Benedikt (aka Benito) Roezl, 19th century Czech who collected in Mexico and South America
Latin Pronunciation: ROZE-lee-eye

Meaning: Named for Roemer - several botanists have this name, it may depend on the species as to which Roemer they refer to
Latin Pronunciation: ro-mer-ee-AH-nuh

Meaning: Named for Rogers; the person commemorated depends on the species
Latin Pronunciation: ro-JERZ-ee-eye

Meaning: Of Rome, Roman
Latin Pronunciation: roh-MAHN-um

Meaning: Named for Friedrich Gerhard Rohlfs, 19th century German explorer of the Sahara
Latin Pronunciation: rohlf-see-AY-num
Alternative Self-Pronouncing:rohlf-see-AH-num

Meaning: Of Rome, Roman
Latin Pronunciation: roh-MAHN-a

rolled

Curled under; revolute.

Meaning: Named for Count Nicholas Romanzoff, 19th century Russian who financed and promoted the expedition
Latin Pronunciation: roh-man-zoff-ee-AH-num

Meaning: Named for Count Nicholas Romanzoff, 19th century Russian who financed and promoted the expedition
Latin Pronunciation: roh-man-zoff-ee-AH-nuh

Meaning: Referring to Rondonia, in the Amazon Basin in Brazil
Latin Pronunciation: ron-doh-nee-AH-na

Meaning: Referring to Rondonia, in the Amazon Basin in Brazil
Latin Pronunciation: ron-doh-nee-AH-nus

Meaning: Referring to Rondonia, in the Amazon Basin in Brazil
Latin Pronunciation: ron-doh-nee-AH-num

rootball (alt. root ball)

The root stock and surrounding soil together; in nurseries and during transport, these are held together by burlap or other wrapping.

Meaning: Of or from Rondonia, in the Amazon Basin in Brazil
Latin Pronunciation: ron-doh-nee-EN-sis

rootlet

A small, secondary root.

rootbound (alt. root bound)

The condition of a houseplant or outdoor container plant which has outgrown its container, with the roots filling every niche of the container. Eventually, the roots will themselves strangle the plant by constricting the flow of nutrients. A hook or blade is required to cut through and separate the tangled matted outer roots when removed from the pot and before placing in the new container.

root

The underground part of a plant that serves to anchor it and supplies it with nourishment.

rootstock (syn. rhizome, syn. understock)

1. A rhizome. 2. The root system and lower portion of a woody plant to which a graft of a more desirable plant is attached.

rootworm

The larvae of a beetle of the genusDiabrotica that feed on the roots of various plants, particularly corn.

rootbound (alt. root bound)

The condition of a houseplant or outdoor container plant which has outgrown its container, with the roots filling every niche of the container. Eventually, the roots will themselves strangle the plant by constricting the flow of nutrients. A hook or blade is required to cut through and separate the tangled matted outer roots when removed from the pot and before placing in the new container.

root cutting

A cutting taken from the root of a parent plant for the purpose of propagation.

root knot

A disease of the roots characterized by a swelling and caused by nematodes.

root zone

The area immediately surrounding the roots and from which a plant takes moisture and nourishment.

root pruning

1. Pruning to stimulate the growth of new roots within a parameter in preparation for transplanting. 2. Trimming and/or scoring the outer layer of roots of a plant that has become root bound. 3. The act of removing a portion of a plant's roots to keep top growth in check.

Meaning: From the Latin, meaning dewy; wet with dew
Latin Pronunciation: RO-rid-uh

Meaning: Latinized form of Rorippen, a Saxon vernacular name used by Euricius Cordus
Latin Pronunciation: ro-RIP-uh

roridulous (alt. roridulate)

Dewy; covered with waxy plates which appear to be dew drops.

Meaning: From the Latin rorida (dewy; wet with dew)
Latin Pronunciation: ro-RID-yoo-la

Meaning: Rose of China
Latin Pronunciation: RO-suh se-NEN-sis

Latin Pronunciation: roh-zay-see-us
Meaning: Rose-like.

Latin Pronunciation: roh-zee-fioh-rus
Meaning: Rose- flowered.

Meaning: The Rosa (rose) family
Latin Pronunciation: ro-ZAY-see-ay

Meaning: Having foliage like Rosa (Rose genus); also spelled rosifolia
Latin Pronunciation: roh-say-FOH-lee-uh

Meaning: Having leaves like Rosa (Rose genus); also spelled rosifolius
Latin Pronunciation: roh-say-FOH-lee-us

Meaning: Named for William Roscoe, 19th century British lawyer and founder of the Liverpool botanic garden
Latin Pronunciation: ross-KOH-ee-uh

Meaning: Rosy
Latin Pronunciation: RO-zee-uh

Meaning: Named for Joseph Nelson Rose, early 20th century American botanist and authority on Apiaceae and Cactaceae
Latin Pronunciation: ROSE-eye

Meaning: Rose colored flower
Latin Pronunciation: roh-sey-FLOR-um

Meaning: Rose colored flower
Latin Pronunciation: roh-sey-FLOR-uh

Meaning: Rose colored flower
Latin Pronunciation: roh-sey-FLOR-us

Meaning: With leaves in a small rosette
Latin Pronunciation: ro-SEL-lum

Meaning: With leaves in a small rosette
Latin Pronunciation: ro-SEL-luh

Meaning: With leaves in a small rosette
Latin Pronunciation: ro-SEL-lus

Meaning: Rose-yellow, referring to the bi-colored flowers
Latin Pronunciation: roh-see-oh-LOO-tee-uh

Meaning: Rose-yellow, referring to the bi-colored flowers
Latin Pronunciation: roh-see-oh-LOO-tee-us

Meaning: Rose painted
Latin Pronunciation: ro-see-oh-PIK-tum

Meaning: Rose painted
Latin Pronunciation: ro-see-oh-PIK-tuh

Meaning: Rose-colored spadix (a clublike spike with tiny flowers and often enclosed within a sheath-like spathe)
Latin Pronunciation: roh-see-oh-SPAY-diks

rosette

A cluster of leaves which grows in a circular overlapping pattern--somewhat like the petals of a rose--arising basally from a crown, as on a dandelion, or apically from an axis, as on many palms.

Latin Pronunciation: roh-zee-us
Meaning: rosy (color).

Meaning: Rosy
Latin Pronunciation: RO-zee-um

rose dethorner

Florist tool to remove the thorns from roses and other flowers.

rose hip

A smooth, rounded, fruit-like structure consisting of the cup-like calyx enclosing seed-like fruits.

Meaning: Having leaves like Rosemary
Latin Pronunciation: rose-ma-ree-nee-FOH-lee-uh

Meaning: Having leaves like Rosa (Rose genus); also spelled rosaefolia
Latin Pronunciation: roh-sih-FOH-lee-uh

Meaning: Having leaves like Rosa (Rose genus); also spelled rosaefolius
Latin Pronunciation: roh-sih-FOH-lee-us

Meaning: Having leaves like Rosemary
Latin Pronunciation: rose-ma-ree-nee-FOH-lee-us

Meaning: Of or from Rossiya (Russia)
Latin Pronunciation: ROS-ih-kum

Meaning: Having leaves like Rosemary
Latin Pronunciation: rose-ma-ree-nee-FOH-lee-um

Meaning: Of or from Rossiya (Russia)
Latin Pronunciation: ROS-ih-kuh

Meaning: Of or from Rossiya (Russia)
Latin Pronunciation: ROS-ih-kus

Meaning: Named for William Ross, a botanical collector; or Capt. James Ross, leader of an arctic expedition; or others named Ross, depending on genus
Latin Pronunciation: ROSS-ee-eye

Meaning: Named for Arthur Edler von Rosthorn, 19th century Austro-Hungarian ambassador in Peking
Latin Pronunciation: ros-thorn-ee-AH-na

Meaning: Named for John Ross, 19th century plant collector in Mexico
Latin Pronunciation: ross-ee-oh-GLOSS-um

rostellum

A little beak: a slender extension from the upper edge of the stigma in orchids.

rostellate

Having a short beak.

Meaning: Named for Arthur Edler von Rosthorn, 19th century Austro-Hungarian ambassador in Peking
Latin Pronunciation: ros-thorn-ee-AH-num

Meaning: Named for Arthur Edler von Rosthorn, 19th century Austro-Hungarian ambassador in Peking
Latin Pronunciation: ros-THORN-ee-eye

Meaning: With a beak
Latin Pronunciation: ro-STRAY-tuh

Meaning: Named for Arthur Edler von Rosthorn, 19th century Austro-Hungarian ambassador in Peking
Latin Pronunciation: ros-thorn-ee-AH-nus

rostrate

1. Having a beak. 2. Describes an operculum with a long beak.

Latin Pronunciation: ross-tray-tus
Meaning: beaked (rostrate).

Meaning: Having a small beak
Latin Pronunciation: rost-rin-YOO-kuh-luh

Latin Pronunciation: roh-zew-lay-riss
Meaning: in rosettes.

rosula

A rosette.

Meaning: Leaves borne in a rosette
Latin Pronunciation: ros-yoo-LAY-tuh
Alternative Self-Pronouncing:rose-yoo-LAT-uh

Meaning: With a beak
Latin Pronunciation: ro-STRAY-tum

Meaning: Rosette-shaped
Latin Pronunciation: rohs-uh-LAY-ree-a

rosulate

In the form of a rosette.

Meaning: Leaves borne in a rosette
Latin Pronunciation: ros-yoo-LAY-tus
Alternative Self-Pronouncing:rose-yoo-LAT-us

Meaning: Leaves borne in a rosette
Latin Pronunciation: ros-yoo-LAY-tum
Alternative Self-Pronouncing:rose-yoo-LAT-um

Meaning: Referring to the rose family, or color
Latin Pronunciation: RO-zum

rotary edger and trimmer

A lawn tool which has rotating spikes on one edge to trim grass back from drives and walks.

rot

Any of various diseases causing the breakdown and rotting of tissue.

Meaning: From rotalis (wheeled, wheel-like), referring to the whorled leaves
Latin Pronunciation: ro-TAY-luh

Meaning: From the Latin rota (wheel, coiled) and anthos (flower)
Latin Pronunciation: roh-TAN-tha

rotary mower

The most common type of grass- cutting tool, usually powered by gasoline or electricity.

Meaning: Referring to the rose family, or color
Latin Pronunciation: RO-zus

rotate

Describes a corolla that is wheel-shaped flat and circular in outline.

Meaning: Wheel-like
Latin Pronunciation: ro-TAY-tum

Meaning: Named for Joseph Trimble Rothrock, 19th century surgeon and botanist for the Wheeler Expedition
Latin Pronunciation: roth-ROK-ee-eye

Meaning: Wheel-like
Latin Pronunciation: ro-TAY-tuh

Latin Pronunciation: roh-tay-tus
Meaning: disc-like flower limb or corolla (rotate).

Meaning: Named for Lionel Walter, 2nd Baron Rothschild, early 20th century British naturalist and zoologist
Latin Pronunciation: roths-child-ee-AH-nus

Meaning: Named for Lionel Walter, 2nd Baron Rothschild, early 20th century British naturalist and zoologist
Latin Pronunciation: roths-child-ee-AH-nuh

rotation grazing

Alternating between two or more pastures. See also: cell system pasturing, deferred grazing.

Meaning: Named for Lionel Walter, 2nd Baron Rothschild, early 20th century British naturalist and zoologist
Latin Pronunciation: roths-child-ee-AH-num

Meaning: Round, fat
Latin Pronunciation: ro-TUN-duh

rotund

Rounded.

Meaning: Named for Lionel Walter, 2nd Baron Rothschild, early 20th century British naturalist and zoologist
Latin Pronunciation: roths-CHILD-ee-eye

Meaning: Rounded
Latin Pronunciation: roh-tun-DAY-tuh

Meaning: Rounded
Latin Pronunciation: roh-tun-DAY-tum

Meaning: Round leaf
Latin Pronunciation: ro-tun-dih-FOH-lee-um

Meaning: Round leaf
Latin Pronunciation: ro-tun-dih-FOH-lee-uh

Latin Pronunciation: roh-tun-dif-foh-lee-us
Meaning: round leaved.

Meaning: Round, fat
Latin Pronunciation: ro-TUN-dum

Meaning: Rounded
Latin Pronunciation: roh-tun-DAY-tus

Latin Pronunciation: roh-tund-us
Meaning: round.

Meaning: Named for Arabella Elizabeth Roupell, 20th century botanical artist in South Africa
Latin Pronunciation: roo-PEL-ee-ay

rough

Papillose.

Meaning: Named for Gordon Douglas Rowley, 20th century succulent enthusiast
Latin Pronunciation: ro-lee-AH-nus

Meaning: Named for William Roxburgh, 18th century Scottish botanist, who specialized in the flora of India
Latin Pronunciation: roks-burgh-ee-AH-nuh

Meaning: Named for William Roxburgh, 18th century Scottish botanist, who specialized in the flora of India
Latin Pronunciation: roks-burgh-ee-AH-num

Meaning: Named for John Forbes Royle, 19th century British botanist and physician in India before returning to London as professor of materia medica
Latin Pronunciation: ROY-lee-a

Meaning: Named for William Roxburgh, 18th century Scottish botanist, who specialized in the flora of India
Latin Pronunciation: roks-BURGH-ee-eye

Meaning: Named for John Forbes Royle, 19th century British botanist and physician in India before returning to London as professor of materia medica
Latin Pronunciation: roy-lee-AY-na

Meaning: Named for John Forbes Royle, 19th century British botanist and physician in India before returning to London as professor of materia medica
Latin Pronunciation: ROYL-ee-eye

Meaning: Named for John Forbes Royle, 19th century British botanist and physician in India before returning to London as professor of materia medica
Latin Pronunciation: roy-lee-AY-num

Meaning: Named for John Forbes Royle, 19th century British botanist and physician in India before returning to London as professor of materia medica
Latin Pronunciation: roy-lee-AY-nus

rubefacients

Herbal medicines which open the small blood vessels of the skin to increase its heat and redness.

Meaning: A little bit red; pale red
Latin Pronunciation: ROO-bel-uh

Latin Pronunciation: roo-bell-us
Meaning: reddish.

Meaning: A little bit red; pale red
Latin Pronunciation: ROO-bel-um

Latin Pronunciation: roo-ber
Meaning: red.

Meaning: From the Latin ruber (red), referring to the reddish dye obtained from the roots of this plant
Latin Pronunciation: ROO-bee-uh

Latin Pronunciation: roo-behr-im-us
Meaning: very red.

Latin Pronunciation: roo-bess-senz
Meaning: reddish, becoming red.

Meaning: Ruddy
Latin Pronunciation: rub-ee-KUN-duh

Latin Pronunciation: roo-benz
Meaning: red or ruddy.

Meaning: Ruddy
Latin Pronunciation: rub-ee-KUN-dum

Meaning: Having foliage resembling Rubia (genus name from the Latin ruber, red)
Latin Pronunciation: roo-bih-FOH-lee-uh

Latin Pronunciation: roo - bik - kund - us
Meaning: red, ruddy.

Meaning: Rusty
Latin Pronunciation: roo-bij-ih-NO-suh

Meaning: Having foliage resembling Rubia (genus name from the Latin ruber, red)
Latin Pronunciation: roo-bih-FOH-lee-um

Latin Pronunciation: roo-bij-in-noh-sus
Meaning: rusty (color).

Meaning: Rusty
Latin Pronunciation: roo-bij-ih-NO-sum

Meaning: Red
Latin Pronunciation: roo-BIN-ee-us

Meaning: Resembles Rubia (genus name, from the Latin ruber, meaning red)
Latin Pronunciation: roo-bee-OY-deez

Meaning: Red
Latin Pronunciation: roo-BIN-ee-a

Meaning: Red colored
Latin Pronunciation: ROO-bruh

Meaning: Red-colored spines
Latin Pronunciation: roo-bih-SPIN-uh

Meaning: Red-stemmed
Latin Pronunciation: roo-bri-KAW-lee

Latin Pronunciation: roo-brik-kaw-liss
Meaning: red- stemmed.

Latin Pronunciation: roo-broh-frook-tus
Meaning: red-fruited.

Latin Pronunciation: roo-brif-foh-lee-us
Meaning: red-leaved.

Meaning: Red-colored spines
Latin Pronunciation: roo-bih-SPIN-us

Meaning: From the Greek rubra (red), and grandis (large, spectactular)
Latin Pronunciation: roo-bro-GRAN-dis

Meaning: Red margins
Latin Pronunciation: roo-bro-mar-gin-AY-tus

Meaning: Red margins
Latin Pronunciation: roo-bro-mar-gin-AY-tum

Meaning: Red margins
Latin Pronunciation: roo-bro-mar-gin-AY-tuh

Latin Pronunciation: roo-broh-nerv-iss
Meaning: red- veined.

Meaning: Red veined
Latin Pronunciation: roo-bro-NER-vee-um

Meaning: Red veined
Latin Pronunciation: roo-bro-NER-vee-uh

Meaning: From the Greek rubro (red) and pilosus (hair)
Latin Pronunciation: roo-broh-pil-OH-sum

Meaning: Red veined
Latin Pronunciation: roo-bro-NER-vee-us

Meaning: From the Greek rubro (red) and pilosus (hair)
Latin Pronunciation: roo-broh-pil-OH-suh

Meaning: From the Greek rubro (red) and pilosus (hair)
Latin Pronunciation: roo-broh-pil-OH-sus

Meaning: Red-dyed, because the leaves turn red in full sun
Latin Pronunciation: roo-broh-TINK-tuh

Meaning: With a red stem
Latin Pronunciation: roo-broh-STIL-uh

Meaning: Red-violet
Latin Pronunciation: roo-broh-vy-oh-LAH-see-uh
Alternative Self-Pronouncing:roo-broh-vy-oh-LAH-say-uh

Latin Pronunciation: roob-rus
Meaning: red.

Meaning: Red-dyed, because the leaves turn red in full sun
Latin Pronunciation: roo-broh-TINK-tum

Meaning: Red-dyed, because the leaves turn red in full sun
Latin Pronunciation: roo-broh-TINK-tus

Meaning: Red colored
Latin Pronunciation: ROO-brum

ruderal

Growing in poor land or waste places.

Meaning: Of or growing in debris or wasteland
Latin Pronunciation: roo-der-AY-lee

rudimentary

Partially developed.

Meaning: From rufus (red) and acer (Maple genus)
Latin Pronunciation: ROOF-ay-ser

Latin Pronunciation: roo-diss
Meaning: wild, not cultivated.

Latin Pronunciation: roo-fess-senz
Meaning: reddish.

Meaning: Red-brown, rusty colour
Latin Pronunciation: ROO-fuh

Meaning: Somewhat reddish or rusty-coloured
Latin Pronunciation: roo-FEE-duh-la
Alternative Self-Pronouncing:roo-FID-yoo-la

Meaning: Somewhat reddish or rusty-coloured
Latin Pronunciation: roo-FEE-duh-lus
Alternative Self-Pronouncing:roo-FID-yoo-lus

rufescent (alt. rufous)

Reddish-brown.

Meaning: Reddish, rusty colour
Latin Pronunciation: ROO-fee-duh

Meaning: Somewhat reddish or rusty-coloured
Latin Pronunciation: roo-FEE-duh-lum
Alternative Self-Pronouncing:roo-FID-yoo-lum

Meaning: Reddish, rusty colour
Latin Pronunciation: ROO-fee-dum

Latin Pronunciation: roo-fln-nerv-iss
Meaning: reddish-veined.

Meaning: Having red veins
Latin Pronunciation: roo-fi-ner-vee
Alternative Self-Pronouncing:roo-fee-ner-vee

Meaning: Red-brown, rusty colour
Latin Pronunciation: ROO-fum

Meaning: Named for Ferdinand Rugel, 19th century American botanist in the southeastern U.S.
Latin Pronunciation: roo-GEL-ee-eye
Alternative Self-Pronouncing:rug-GEL-ee-eye

Meaning: Reddish-brown (rusty) beard
Latin Pronunciation: roo-fee-POH-gon

Meaning: Reddish, rusty colour
Latin Pronunciation: ROO-fee-dus

Latin Pronunciation: roof-us
Meaning: reddish, red.

Latin Pronunciation: roo-goh-sus
Meaning: wrinkled (rugose).

Meaning: Wrinkled
Latin Pronunciation: roo-GO-suh

rugose

Wrinkled; leaf veins deeply etched into the upper surface of the leaf.

Meaning: Wrinkled
Latin Pronunciation: roo-GO-sum

Meaning: Finely wrinkled
Latin Pronunciation: rug-yoo-LOH-sa

rugulose

Covered with minute wrinkles.

Meaning: Finely wrinkled
Latin Pronunciation: rug-yoo-LOH-sus

Meaning: Named for J. Ph. Ruling, botanist from Gottingen, Germany
Latin Pronunciation: rul-ING-ee-uh

Meaning: Finely wrinkled
Latin Pronunciation: rug-yoo-LOH-sum

ruminate

Having a surface which is coarsely wrinkled, appearing as though chewed by a cow and then spit out, but not with the margins appearing gnawed as in erose margins.

Meaning: Of or from Rumili
Latin Pronunciation: roo-MEL-ee-kuh

Meaning: Named for Georg Everhard Rumpf (Latinized to Rumphius), 17th century botanical author of Herbarium Amboinense
Latin Pronunciation: RUMF-ee-eye
Alternative Self-Pronouncing:ROOMF-ee-eye

Meaning: Named for Karl Freiderich von Rumohr (Ruhmohr), 19th century German art expert
Latin Pronunciation: roo-MOH-ruh

Meaning: Having sawtoothed or serrated leaves pointing back towards the base
Latin Pronunciation: run-sin-AH-ta

runcinate

Sharply incised, with the segments directed backward.

Meaning: Having sawtoothed or serrated leaves pointing back towards the base
Latin Pronunciation: run-sin-AH-tum

Latin Pronunciation: run-sin-nay-tus
Meaning: back wardly-toothed.

runner

A filiform or very slender stolon. A prostrate branch that roots at its joints.

Meaning: Possibly named for Robert Runyon, early 20th century American amateur botanist and photographer
Latin Pronunciation: run-YON-ee-eye

runoff (alt. run-off)

Water which originated on top of the land, such as rain, and collected beyond the ability of the soil to absorb it, so it flows away.

Meaning: Rock-dweller
Latin Pronunciation: roo-pee-koh-lum

Meaning: Possibly named for Robert Runyon, early 20th century American amateur botanist and photographer
Latin Pronunciation: RUN-yon-eye

Meaning: Referring to rocks
Latin Pronunciation: rue-PES-tree

Meaning: Rock-dweller
Latin Pronunciation: roo-pee-koh-luh

Latin Pronunciation: roo-pest-riss
Meaning: rock-growing.

Latin Pronunciation: roo-pikk-ol-us
Meaning: growing on cliffs or ledges.

Meaning: Rock breaker, because it grows in clefts
Latin Pronunciation: roo-py-FRAG-uh

Meaning: Rock breaker, because it grows in clefts
Latin Pronunciation: roo-py-FRAG-um

Meaning: Named for Franz Joseph Ruprecht, 19th century Austrian-born Russian botanist and curator of Academy of Science in St. Petersburg
Latin Pronunciation: roo-PREK-tee-eye

Meaning: Named for Henry Hurd Rusby, 20th century plant collector and explorer who collected over 10,000 plants and helped establish the New York Botanical Garden
Latin Pronunciation: RUS-bee-a

Meaning: Rock breaker, because it grows in clefts
Latin Pronunciation: roo-py-FRAG-us

Meaning: Named for Henry Hurd Rusby, 20th century plant collector and explorer who collected over 10,000 plants and helped establish the New York Botanical Garden
Latin Pronunciation: rus-bee-AH-na

Meaning: Named for Henry Hurd Rusby, 20th century plant collector and explorer who collected over 10,000 plants and helped establish the New York Botanical Garden
Latin Pronunciation: rus-bee-AH-num

Meaning: Named for Franz Joseph Ruprecht, 19th century Austrian-born Russian botanist and curator of Academy of Science in St. Petersburg
Latin Pronunciation: roo-PREK-tee-a

Meaning: Named for Henry Hurd Rusby, 20th century plant collector and explorer who collected over 10,000 plants and helped establish the New York Botanical Garden
Latin Pronunciation: RUS-bee-eye

Meaning: Named for Ernst Julius Rusch, 20th century South African farmer and father to Ernst Franz Theodor Rusch, for whom Ruschianthus is named
Latin Pronunciation: ROOS-kee-uh

Meaning: Named for Henry Hurd Rusby, 20th century plant collector and explorer who collected over 10,000 plants and helped establish the New York Botanical Garden
Latin Pronunciation: rus-bee-AH-nus

Meaning: Having leaves like Ruscus (genus name derived from the Anglo-Saxon for holly or box)
Latin Pronunciation: rus-kih-FOH-lee-um

Meaning: Named for Ernst Franz Theodor Rusch, 19th century South African farmer, and son of Ernst Julius Rusch (for whom Ruschia is named)
Latin Pronunciation: roos-kee-ANTH-us

Meaning: Having leaves like Ruscus (genus name derived from the Anglo-Saxon for holly or box)
Latin Pronunciation: rus-kih-FOH-lee-uh

Meaning: Having leaves like Ruscus (genus name derived from the Anglo-Saxon for holly or box)
Latin Pronunciation: rus-kih-FOH-lee-us

rush (pl. rushes)

Any of various monocotyledonous, grass-like, often tufted marsh plants of the family Juncaceae, having cylindrical often hollow stems.

Meaning: Named for John Russell, 6th Duke of Bedford and promoter of botany, gardening, forestry and agriculture
Latin Pronunciation: rus-sel-lee-AY-nuh

rush (pl. rushes)

Any of various monocotyledonous, grass-like, often tufted marsh plants of the family Juncaceae, having cylindrical often hollow stems.

Meaning: Named after a Russell - but not sure who
Latin Pronunciation: russ-el-ee-AH-nuh

Meaning: Named for John Russell, 6th Duke of Bedford and promoter of botany, gardening, forestry and agriculture
Latin Pronunciation: rus-sel-lee-AY-num

rust

A large fungus group infecting such plants as roses and snapdragons. Round spots occur on the leaves, filled with yellow or reddish spores.

Meaning: Named for John Russell, 6th Duke of Bedford and promoter of botany, gardening, forestry and agriculture
Latin Pronunciation: rus-sel-lee-AY-nus

Meaning: Of or from Russia
Latin Pronunciation: RUSS-ee-kum

Meaning: From the country
Latin Pronunciation: RUS-tih-kuh
Alternative Self-Pronouncing:ROO-sti-kuh

Latin Pronunciation: rust-ik-kay-nus
Meaning: pertain partly or imperfectly pinnate.

rusticate (n. rustication)

To build or face with usually rough-surfaced masonry.

Meaning: From the country
Latin Pronunciation: RUS-tih-kum
Alternative Self-Pronouncing:ROO-sti-kum

Meaning: Rustic, of the countryside
Latin Pronunciation: rus-tik-AH-nuh

Meaning: Rustic, of the countryside
Latin Pronunciation: rus-tik-AH-num

Meaning: From the Greek ruta (bitter herb, such as rue) and murus (wall)
Latin Pronunciation: ROO-tuh mur-AY-ree-uh

Meaning: The Ruta family (genus name means bitter herb)
Latin Pronunciation: roo-TAY-see-ay

Latin Pronunciation: rust-ik-us
Meaning: belonging to the country.

Meaning: From the Greek ruta (bitter herb, such as rue) and murus (wall)
Latin Pronunciation: ROO-tay mur-AY-ree-ay

Meaning: Referring to Ruthenia, a region of European Russia
Latin Pronunciation: ru-THEN-ih-ka

Meaning: Referring to Ruthenia, a region of European Russia
Latin Pronunciation: ru-THEN-ih-kum

Meaning: Wrinkling, rutilant, shining
Latin Pronunciation: roo-tih-DO-sis

Meaning: Referring to Ruthenia, a region of European Russia
Latin Pronunciation: ru-THEN-ih-kus

Latin Pronunciation: rooth-enn-ik-us
Meaning: Russian (Ruthenian).

Meaning: Having foliage like Ruta (rue)
Latin Pronunciation: roo-tih-FOH-lee-uh

Meaning: Having foliage like Ruta (rue)
Latin Pronunciation: roo-tih-FOH-lee-us

Meaning: Goldish-red
Latin Pronunciation: roo-TIL-uh

Meaning: Having foliage like Ruta (rue)
Latin Pronunciation: roo-tih-FOH-lee-um

Meaning: Goldish-red
Latin Pronunciation: roo-TIL-um

Latin Pronunciation: root-il-anz
Meaning: red, reddening.

Meaning: Named for John Rutty, 18th century physician and author in Dublin
Latin Pronunciation: RUT-tee-uh

Meaning: Possibly from the Latin ruvo (red), or the Italian city Ruvo (formerly Rubi)
Latin Pronunciation: ROO-vo

Meaning: Named for Frederik Ruysch, 17th century Dutch anatomist and botanist
Latin Pronunciation: ru-EE-schee-a

Meaning: Goldish-red
Latin Pronunciation: roo-TIL-us

Meaning: Named for Per Axel Rydberg, early 20th century expert on expert on Western (U.S.) flora and member of the New York Botanical Gardens
Latin Pronunciation: ryd-BERG-ee-uh

Meaning: Named for Frederik Ruysch, 17th century Dutch anatomist and botanist
Latin Pronunciation: ru-ee-schee-AH-na

Meaning: Named for Frederik Ruysch, 17th century Dutch anatomist and botanist
Latin Pronunciation: ru-ee-schee-AH-num

Meaning: Named for Per Axel Rydberg, early 20th century expert on expert on Western (U.S.) flora and member of the New York Botanical Gardens
Latin Pronunciation: ryd-berg-ee-AY-nuh

Meaning: Named for Per Axel Rydberg, early 20th century expert on expert on Western (U.S.) flora and member of the New York Botanical Gardens
Latin Pronunciation: ryd-BERG-ee-eye

Meaning: Named for Dr. Jersy Rzedowski, professor of Botany at the University of Mexico
Latin Pronunciation: re-DOW-skee-eye