Thuja koraiensis ( Korean arborvitae )

This is a small, evergreen tree with a conical habit. It often has trailing branchlets with flat shoots. Scale-like leaves are diamond shaped on young shoots and triangular on older shoots, bright green on top and silvery underneath. They grow […]

Thrinax morrisii ( Brittle thatch palm )

Thrinax morrisii is a small palm with a slim-, upright stems. Leaves are divided halfway into 33 to 58 narrow lobes, densely white to tan-scaly underneath, then glabrous blue-green above. Produces white to yellow or orange flowers in loose-arching panicles. […]

Thrinax bahamensis ( Brittle thatch )

Thrinax bahamensis is a small palm with a slim-, upright stems. Leaves are divided halfway into 33 to 58 narrow lobes, densely white to tan-scaly underneath, then glabrous blue-green above. Produces white to yellow or orange flowers in loose-arching panicles. […]

Thlaspi macrophyllum ( Thlaspi )

Semi-evergreen perennial with scalloped leaves. Malodorous corymbs of white flowers with light green veins bloom in early spring. Flat, heart-shaped fruit follow blooms. Ideal for groundcover underneath trees and shrubs. Also referred to as Pachyphragma.

Thlaspi bulbosum ( CommonName Not Available )

Bulbosum is a tufted, tuberous-rooted perennial with rosetts of ovate to ovate-oblong or rounded, entire or toothed, glaucous, dark green leves. Produces deep purple-violet flowers with spoon-shaped petals on loose, spike-like racemens. In general, this genus of short-lived perennials also […]

Thevetia peruviana ( Be-still tree )

Peruviana, also known as Be-still tree, is an upright, open shrub or small tree with lance-shaped, mid- to green leaves. Produces scented apricot-yellow flowers, followed by triangular-ovoid, red, later black seed pods. In general, Thevetia is fast growing. Foliage is […]

Thelypteris palustris ( Marsh fern )

Palustris, also known as Marsh fern, is a deciduous fern producing long, creeping rhizomes and long-stalked, upright, lance-shaped, pinnate, pale green fronds, consisting of up to 25 pairs of lance-shaped, deeply lobed pinnnae. In general, Thelypteris is a group of […]