Meaning: Damp
Latin Pronunciation: OO-duh

Meaning: Fertile, rich (sometimes referring to soil), abundant
Latin Pronunciation: OO-ber

Meaning: More fertile, rich (sometimes referring to soil), abundant
Latin Pronunciation: OO-ber-ee-or

Meaning: Fertile, rich (sometimes referring to soil), abundant
Latin Pronunciation: OO-bee-or

Meaning: Damp
Latin Pronunciation: OO-dus

Meaning: Named for Werner Uebelman, Swiss grower and collector of cacti in cacti in Brazil, Uruguay and Paraguay
Latin Pronunciation: yoo-bel-MAHN-ee-uh

Meaning: Named for Werner Uebelman, Swiss grower and collector of cacti in cacti in Brazil, Uruguay and Paraguay
Latin Pronunciation: yoo-bel-mahn-ee-AY-nuh

Meaning: Damp
Latin Pronunciation: OO-dum

Meaning: Named for Werner Uebelman, Swiss grower and collector of cacti in cacti in Brazil, Uruguay and Paraguay
Latin Pronunciation: yoo-bel-mahn-ee-AY-nus

Meaning: Of or from Uganda, Africa
Latin Pronunciation: yoo-gand-EN-see
Alternative Self-Pronouncing:yoo-gand-EN-say

Meaning: Named for Werner Uebelman, Swiss grower and collector of cacti in cacti in Brazil, Uruguay and Paraguay
Latin Pronunciation: yoo-bel-mahn-ee-AY-num

Meaning: Derivation is obscure; some sources equate it to the Latin ignis (fire)
Latin Pronunciation: UG-nee
Alternative Self-Pronouncing:OO-nee

Meaning: Having foliage like Ulex (genus name for gorse)
Latin Pronunciation: yoo-lis-if-FOH-lee-uh

Meaning: Resembles Ulex, (ancient Latin name for the genus)
Latin Pronunciation: yoo-lih-SEE-nuh

Meaning: Resembles Ulex, (ancient Latin name for the genus)
Latin Pronunciation: yoo-lih-SEE-nuh

Meaning: Grows in bogs and swamps
Latin Pronunciation: ew-li-gi-NO-suh

Meaning: Resembles Ulex, (ancient Latin name for the genus)
Latin Pronunciation: yoo-lih-SEE-num

Meaning: Grows in bogs and swamps
Latin Pronunciation: ew-li-gi-NO-sum

Latin Pronunciation: yew-lij-in-noh-sus
Meaning: of wet or marshy places.

Meaning: Like an Elm
Latin Pronunciation: ul-MAR-ee-uh

Meaning: The Ulmus (elm and hackberry) family
Latin Pronunciation: ulm-AY-see-ay

Meaning: Like an Elm
Latin Pronunciation: ul-MAR-ee-um

Meaning: Like an Elm
Latin Pronunciation: ul-MAR-ee-us

Meaning: Having leaves resembling the Elm genus
Latin Pronunciation: ul-mif-FOH-lee-uh

Meaning: Having leaves resembling the Elm genus
Latin Pronunciation: ul-mif-FOH-lee-um

Latin Pronunciation: ulm-if-foh-lee-us
Meaning: Elm(Ulmus)-leaved.

Meaning: Farthest
Latin Pronunciation: UL-tim-uh

Meaning: Farther beyond
Latin Pronunciation: ul-TIR-ee-or

Latin Pronunciation: ulm-moy-deez
Meaning: Elm (Ulmus)-like.

ultimate

Of the lowest order; the smallest division.

Meaning: Farthest
Latin Pronunciation: UL-tim-us

Meaning: From the other (far) side of the mountain
Latin Pronunciation: ul-tra-MON-tah-nuh
Alternative Self-Pronouncing:ul-tra-mon-TAY-nuh

Meaning: Farthest
Latin Pronunciation: UL-tim-um

Meaning: From the other (far) side of the mountain
Latin Pronunciation: ul-tra-MON-tah-nus
Alternative Self-Pronouncing:ul-tra-mon-TAY-nus

Latin Pronunciation: yew-kran-ik-us
Meaning: from the Ukraine.

umbellate

In or like an umbel.

Meaning: In umbels
Latin Pronunciation: um-bell-AY-tuh

Meaning: In umbels
Latin Pronunciation: um-bell-AY-tum

umbel

An inflorescence in which the peduncles or pedicels of a cluster spring from the same point.

Latin Pronunciation: urn - bel - lay - tus
Meaning: with parted.

umbelliform

In the shape of an umbel.

Meaning: The old family name for the Apiaceae (celery) family
Latin Pronunciation: um-bell-LIF-er-ay

umbellet

A secondary umbel.

Meaning: In umbels
Latin Pronunciation: um-bel-IF-for-me

Meaning: In umbels
Latin Pronunciation: um-bel-IF-for-miss

Meaning: In small umbels
Latin Pronunciation: um-bel-lew-LAH-tum
Alternative Self-Pronouncing:um-bell-oo-LAH-tum

Latin Pronunciation: um-bel-yew-lay-tus
Meaning: with small umbel-like flower clusters.

umbellule

An umbellet.

Meaning: In small umbels
Latin Pronunciation: um-bel-lew-LAH-tuh
Alternative Self-Pronouncing:um-bell-oo-LAH-tuh

umbilicate

A form of lichen in which the thallus is attached to the substratum by a umbilicus.

umbo

A rough projection arising from the center of an object, e.g., the thick part of the scale of a pine cone,Pinus.

Meaning: Shade-bearing
Latin Pronunciation: um-brak-yoo-LIF-er-uh

umbonate

Bearing a stout projection in the center; bossed.

umbraculiferous

Shaped like an umbrella.

Latin Pronunciation: urn-brak-yew-lifform-iss
Meaning: umbrella-shaped.

Latin Pronunciation: um-brak-yew-liff-er us
Meaning: umbrella-like.

Meaning: Shady
Latin Pronunciation: um-BRO-sum

Meaning: Shade-dweller; growing in shady places
Latin Pronunciation: um-bruh-TEE-koh-luh

Meaning: Shady
Latin Pronunciation: um-BRO-suh

Meaning: Of or from Unalaska, one of the Aleutian Islands in southwest Alaska (U.S.); also spelled unalaschensis
Latin Pronunciation: un-uh-las-KEN-sis

Latin Pronunciation: um-broh-sus
Meaning: growing in

Meaning: Of or from Unalaska, one of the Aleutian Islands in southwest Alaska (U.S.); also spelled unalascensis
Latin Pronunciation: un-uh-las-KEN-sis

unarmed

Lacking thorns, prickles, etc.

Meaning: Possibly named for the Uncarina tribe of Madagascar
Alternative Meaning:A diminutive of Uncaria, an earlier and illegitimate name of the allied genus
Latin Pronunciation: un-kar-ee-nuh

Meaning: One-twelfth; one inch
Latin Pronunciation: UN-shul-liss
Alternative Self-Pronouncing:un-see-AY-liss

Meaning: Referring to a hook or spine
Latin Pronunciation: un-sin-NA-tuh

Meaning: One-twelfth; one inch
Latin Pronunciation: UN-shul-lee
Alternative Self-Pronouncing:un-see-AY-lee

uncinate

Hooked, curved back at point.

Meaning: Referring to a hook or spine
Latin Pronunciation: un-sin-NA-tum

uncongeniality

The relationship between types of woody plants which will form a graft, but produce large swellings, severe dwarfing, or overgrowths at the plant union.

Meaning: With hooks, barbs
Latin Pronunciation: un-KIN-ee-uh

Meaning: Referring to a hook or spine
Latin Pronunciation: un-sin-NA-tus

Meaning: Wavy edged
Latin Pronunciation: un-DAY-tuh

Meaning: Wavy edged
Latin Pronunciation: un-DAY-tum

Latin Pronunciation: un-day-tus
Meaning: wavy, waving.

underdrainage

1. The placement of perforated plastic pipe or porous clay pipe underground, often with a layer of crushed stone over it, to carry away excess water. 2. A natural or man-made system allowing excess water to be carried away from a cultivated field.

understock (syn. rhizome, syn. rootstock)

The stock or root plant onto which a shoot has been grafted to produce a new plant in bud- grafting, especially in cases of double-worked trees.

understocked

Refers to a range that could carry more livestock, or a stand that could support more trees or other materials. See also: fully stocked, overstocked, carrying capacity.

undershrub

A low shrub that is often part of the understory growth, especially of an edge.

understory

The shrubs and smaller trees between the forest canopy and the ground cover.

Meaning: Variant of undulifolia, meaning to have wavy foliage
Latin Pronunciation: un-dew-lay-FOH-lee-uh

undifferentiated

Describes parts or tissues which are very difficult to tell apart, like the tepals of tulips,Tulipa.

Meaning: Wavy
Latin Pronunciation: un-dew-LAY-tuh

undulate

With a wavy surface; repand.

Meaning: Wavy-leaf
Latin Pronunciation: un-dew-lay-tih-FOH-lee-uh

Meaning: Wavy-leaf
Latin Pronunciation: un-dew-lay-tih-FOH-lee-um

Meaning: Wavy
Latin Pronunciation: un-dew-LAY-tum

Latin Pronunciation: un-dew-lat-if-foh-leeus
Meaning: wavy leaved.

Latin Pronunciation: un - dew - lay - tus
Meaning: wavy, wavy edged (undulate).

Meaning: Having wavy foliage; also spelled undulaefolia
Latin Pronunciation: un-dew-lih-FOH-lee-uh

Meaning: From the Latin meaning "I eat (only) one", referring to the fruit's edible, but marginally palatable qualities
Latin Pronunciation: YOO-nee-doe

Meaning: Named for David von Ungnad, 16th century Austrian ambassador to Constantinople
Latin Pronunciation: oong-NAY-dee-uh

Meaning: Cat's claws
Latin Pronunciation: UN-gu-ee KAT-or-um

Meaning: With a claw
Latin Pronunciation: un-gwee-kew-LAIR-iss

Meaning: With a claw
Latin Pronunciation: un-gwee-kew-LAIR-ee

unguiculate

Contracted at the base into a claw.

Meaning: Claw-like
Latin Pronunciation: un-gwee-kew-LAH-tuh

Meaning: Claw-like
Latin Pronunciation: un-gwee-kew-LAH-tum

Latin Pronunciation: un-gwip-pet-al-us
Meaning: with clawed petals.

Meaning: Claw-like
Latin Pronunciation: un-gwee-kew-LAH-tus

Meaning: Cloven hoof, referring to the lobes on the leaves similarity to cattle hooves
Latin Pronunciation: un-goo-LAH-tuh

Meaning: Cat's claws
Latin Pronunciation: UN-gu-iss KAT-ee

Meaning: Prefix meaning one
Latin Pronunciation: yoo-nee
Alternative Self-Pronouncing:yoo-nih

uniauriculate

Bearing a single auricle.

Meaning: With one bract
Latin Pronunciation: yoo-nee-brak-tee-AY-tuh
Alternative Self-Pronouncing:yoo-nih-brak-tee-AY-tuh

unicarpellate

Having only one carpel.

Latin Pronunciation: yew-nik-kol-or
Meaning: one-colored.

unicellular

Made of one cell.

Meaning: Unique
Latin Pronunciation: YOO-nih-ka

Latin Pronunciation: yew - nik - korn - iss
Meaning: one-horned.

Meaning: Unique
Latin Pronunciation: YOO-nih-kum

Meaning: Single-toothed
Latin Pronunciation: yoo-nih-den-TAY-tuh

Meaning: Single flowered
Latin Pronunciation: yoo-nee-FLOR-uh

Latin Pronunciation: yew-nid-den-tay-tus
Meaning: one- toothed.

Latin Pronunciation: yew - nif - floh - rus
Meaning: one-flowered.

Meaning: Single flowered
Latin Pronunciation: yoo-nee-FLOR-um

unifoliate

Having a single leaf.

unifoliolate

Describes a leaf compound in structure but reduced to only one leaflet.

Meaning: Single leaved
Latin Pronunciation: yoo-nee-FOH-lee-um

Meaning: Single leaved
Latin Pronunciation: yoo-nee-FOH-lee-us

uniform

Always having the same shape, as opposed to dimorphous.

unijugate

Paired.

Meaning: Single leaved
Latin Pronunciation: yoo-nee-FOH-lee-uh

Meaning: Having the same form, manner or degree
Latin Pronunciation: yoo-NIF-for-miss

Meaning: One-budded
Latin Pronunciation: yoo-nee-jem-MAH-ta

Meaning: One lip
Latin Pronunciation: yoo-nee-lab-ee-AH-tuh

unilateral

Having, leaves, flowers or other parts on one side only; with anthers grouped on just one side of the style.

Meaning: Single vein
Latin Pronunciation: yoo-nih-NER-vee-uh

Meaning: Single vein
Latin Pronunciation: yoo-nih-NER-vee-um

Latin Pronunciation: yew-nil-lat-er-ray-liss
Meaning: one-sided.

Meaning: Single vein
Latin Pronunciation: yoo-nih-NER-vee-us

unilocular

Refers to a sporangium or gametangium made of one mother-cell, which forms many spores or gametes by multiple fission.

Meaning: Ancient name for Sea Oats
Latin Pronunciation: yoo-nee-OH-luh

uniovular (alt. uniovulate)

With a single ovule.

union

A graft.

unisexual

A flower of one sex only, either pistillate (female) or staminate (male).

uniseriate

Arranged in a single row.

united

Fused together.

Meaning: Single-spined
Latin Pronunciation: un-ee-SPIN-a

unitegmic

With a single covering over the ovule.

unreduced

Not having undergone meiosis, and so with the number of chromosomes per cell that is characteristic of a sporophyte.

Latin Pronunciation: yew-niv-it-tay-tus
Meaning: one- striped.

univalent

A single, unpaired chromosome.

Meaning: One stripe
Latin Pronunciation: yoo-nih-vy-TAH-tuh

unstratified

Lacking distinct layers.

Meaning: Of or from the Ural Mountains of Russia
Latin Pronunciation: yoo-ral-EN-sis

Meaning: Of or from Uppland, Sweden
Latin Pronunciation: up-LAN-dee-kum

Meaning: From the Greek ouranos (sky) and skopein (to watch); literally, star-gazer. Also spelled uranoscopus
Latin Pronunciation: yur-an-oh-SKO-pos

Meaning: Of cities
Latin Pronunciation: ur-BAH-nuh

Meaning: Named for Ignatz Urban, 20th century Berlin professor and authority on the flora of tropical America
Latin Pronunciation: ur-ban-ee-AY-nuh
Alternative Self-Pronouncing:ur-ban-ee-AH-nuh

Meaning: Of cities
Latin Pronunciation: ur-BAH-num

Meaning: Named for Ignatz Urban, 20th century Berlin professor and authority on the flora of tropical America
Latin Pronunciation: ur-ban-ee-AY-num

Meaning: Named for Ignatz Urban, 20th century Berlin professor and authority on the flora of tropical America
Latin Pronunciation: ur-ban-ee-AY-nus

Meaning: Urban (belonging to cities or towns)
Latin Pronunciation: UR-bee-kuh

Meaning: Of cities
Latin Pronunciation: ur-BAH-nus

Meaning: Urban (belonging to cities or towns)
Latin Pronunciation: UR-bee-kum

urceolate

Hollow and cylindrical or ovoid, and contracted at or below the mouth, like an urn.

Meaning: Urban (belonging to cities or towns)
Latin Pronunciation: UR-bee-kus

Meaning: Shaped like a pitcher, urn
Latin Pronunciation: ur-kee-oh-LAH-tuh

Meaning: Shaped like a pitcher, urn
Latin Pronunciation: ur-kee-oh-LAH-tum

Latin Pronunciation: ur - see - of - lay - tus
Meaning: urn-shaped.

Meaning: Dimutive of urceolus; little pitcher, referring to the flower shape
Latin Pronunciation: ur-kee-oh-LEE-na

Meaning: From the Latin urens (stinging, burning), referring to the glychosides found in this plant, urechitin and urechitoxin
Latin Pronunciation: yoo-REK-ih-teez
Alternative Self-Pronouncing:Oo-REK-ih-teez

Latin Pronunciation: yew-renz
Meaning: stinging, burning

Latin Pronunciation: yew - ren - tiss - im - us
Meaning: sharply stinging.

Meaning: Urn-bearing
Latin Pronunciation: ur-NEE-ger-um

Meaning: Urn-bearing
Latin Pronunciation: UR-nee-ger

Meaning: Urn-bearing
Latin Pronunciation: ur-NEE-ger-uh

Meaning: From the Greek oura (tail) and chloa (grass), referring to the awns
Latin Pronunciation: yur-oh-KLOH-a

Meaning: Having leaves with a long, tail-like tip
Latin Pronunciation: ur-oh-FIL-uh

Meaning: Having leaves with a long, tail-like tip
Latin Pronunciation: ur-oh-FIL-um

Latin Pronunciation: yew - roh - fill - us
Meaning: tail- leaved.

Latin Pronunciation: yew-roh-stak-ee-us
Meaning: with tail-like spikes.

Latin Pronunciation: ur-sye-nus
Meaning: referring to the bear.

Meaning: Referring to a bear
Latin Pronunciation: ur-SEE-nuh

Meaning: Referring to a bear
Latin Pronunciation: ur-SEE-num

Meaning: Named for Johannes Heinrich Ursinus, 17th century professor
Latin Pronunciation: ur-SIN-ee-uh

Meaning: Variant of urticifolium, meaning nettle-leaved
Latin Pronunciation: ur-tik-ay-FOH-lee-um

Meaning: Stinging
Latin Pronunciation: UR-ti-kuh

Meaning: Variant of urticifolia, meaning nettle-leaved
Latin Pronunciation: ur-tik-ay-FOH-lee-uh

Meaning: Variant of urticifolius, meaning nettle-leaved
Latin Pronunciation: ur-tik-ay-FOH-lee-us

Meaning: Nettle-leaved; also spelled urticaefolium
Latin Pronunciation: ur-tik-ih-FOH-lee-uh

Meaning: Nettle-leaved; also spelled urticaefolia
Latin Pronunciation: ur-tik-ih-FOH-lee-uh

Meaning: Nettle-leaved; also spelled urticaefolius
Latin Pronunciation: ur-tik-ih-FOH-lee-uh

Meaning: Of or from Uruguay, South America
Latin Pronunciation: ur-uh-gway-AN-uh

Meaning: Resembles nettle (the genus name Urtica means stinging)
Latin Pronunciation: ur-tih-KOY-deez

Meaning: Of or from uruguay, South America
Latin Pronunciation: ur-uh-gway-EN-see

Meaning: Of or from Uruguay, South America
Latin Pronunciation: ur-uh-gway-AN-us

Meaning: Of or from uruguay, South America
Latin Pronunciation: ur-uh-gway-EN-sis

Meaning: Named for JSC Dumont d'Urville, 19th century French botanist
Latin Pronunciation: ur-VIL-ah-nuh
Alternative Self-Pronouncing:ur-vil-ee-ah-nuh

USDA hardiness zones

Details of hardiness zones of the word is provided on this domain. Planting zones established by the united States Department of Agriculture, defined by minimum winter temperatures.

Meaning: Most useful
Latin Pronunciation: yoo-si-tat-IS-see-muh

Meaning: Most useful
Latin Pronunciation: yoo-si-tat-IS-see-mum

Latin Pronunciation: yew-sit-at-tiss-im-us
Meaning: very useful.

Meaning: Resembles Usnea, a type of lichen
Latin Pronunciation: us-nee-OY-deez

Meaning: Of or from Ussuria (Ussuri Land), in the Russian Far East (aka Eastern Siberia)
Latin Pronunciation: oo-soo-ree-EN-see

Meaning: Burned or scorched
Latin Pronunciation: us-tuh-LAY-tuh

Meaning: Of or from Ussuria (Ussuri Land), in the Russian Far East (aka Eastern Siberia)
Latin Pronunciation: oo-soo-ree-EN-sis

Latin Pronunciation: yus - tal - lay - tus
Meaning: burned (looking), sere.

Meaning: Burned or scorched
Latin Pronunciation: us-tuh-LAY-tum

Meaning: Of or from Utah (U.S.)
Latin Pronunciation: yoo-tah-EN-see
Alternative Self-Pronouncing:yoo-tah-EN-say

Meaning: Of or from Utah (U.S.)
Latin Pronunciation: yoo-tah-EN-sis

Meaning: From the Latin, meaning belly or womb
Latin Pronunciation: YOO-ter

Meaning: Burned or scorched
Latin Pronunciation: us-tuh-LAY-tus

uterotonic

Describes herbal medicines said to have an unspecified positive effect on the uterus.

Latin Pronunciation: yew-til-iss
Meaning: useful.

Meaning: Most useful
Latin Pronunciation: yoo-til-ISS-ih-muh

Meaning: Most useful
Latin Pronunciation: yoo-til-ISS-ih-mum

Meaning: Most useful
Latin Pronunciation: yoo-til-ISS-ih-mus

Meaning: Having bladders or shaped like little bottles
Latin Pronunciation: yoo-trik-u-LAR-ee-uh

Meaning: Useful
Latin Pronunciation: YOO-tih-lee

utricle

A small bladdery 1- seeded fruit; any small bladder-like body.

Meaning: Inflated, bladder-like
Latin Pronunciation: ur-trik-yoo-LAT-um
Alternative Self-Pronouncing:ur-trik-yoo-LAY-tum

Latin Pronunciation: yew-trik-yew-/oh-sus
Meaning: having a small, one-seeded fruit.

Latin Pronunciation: yew-trik-yew-lay-tus
Meaning: having a small, one-seeded fruit (utriculate).

Meaning: Inflated, bladder-like
Latin Pronunciation: ur-trik-yoo-LAT-uh
Alternative Self-Pronouncing:ur-trik-yoo-LAY-tuh

Latin Pronunciation: yew-vuh-oor-sye
Meaning: (Grape-bear) specific name under genus Arctostaphylos.

Meaning: Curly grape
Latin Pronunciation: OO-vuh KRIS-puh

Meaning: Like a bunch of grapes
Latin Pronunciation: oo-VAR-ee-uh

Meaning: Fox grape
Latin Pronunciation: OO-vuh VUL-pis

Meaning: Bear's grape
Latin Pronunciation: OO-vee ur-SOR-ee-um

Latin Pronunciation: yew-vay-ree-us
Meaning: (parts) resembling bunches of Grapes.

Meaning: Like a bunch of grapes
Latin Pronunciation: oo-VAR-ee-um

Latin Pronunciation: yew-vif-er-us
Meaning: having Grape like fruit clusters.

Meaning: Bearing eggs
Latin Pronunciation: oo-VEE-fer-um

Meaning: Pertaining to or befitting a wife; to whom it specifically refers remains obscure
Latin Pronunciation: uks-OR-iss

Meaning: Bearing eggs
Latin Pronunciation: oo-VEE-fer-uh