triggerplants
plural of triggerplant.

triglochin
Any plant of the genus Triglochin; an arrowgrass.

triglochins
plural of triglochin.

trimerophyte
Any of the extinct vascular plants of the class Trimerophytopsida.

trinarization
Conversion of a tree to one with at most three children per node

trinarizations
plural of trinarization

tripit
Tree pipit.

tripits
plural of tripit

triradii
plural of triradius

triradius
A group of three ridges forming a Y shape at the base of each finger on the palm of the hand.

triticum
A plant of the genus Triticum (wheat and related cereals).

triticums
plural of triticum

tromboncini
plural of tromboncino

tromboncino
A kind of squash, that grows on a vine, has a shape reminiscent of a trombone, is eaten as a summer squash, and often exceeds two feet in length when mature as a winter squash.

tromboncinos
plural of tromboncino

tropaia
plural of tropaion

tropaion
An ancient Greek or Roman monument set up to commemorate a victory over foes, and typically shaped like a tree, sometimes with a pair of arm-like branches.

trophophore
The sterile part of a fern's leaf, as opposed to the sporophore.

trophophores
plural of trophophore

trophophyll
A vegetative, nutrient-producing leaf or microphyll, whose primary function is photosynthesis.

trophophylls
plural of trophophyll

trophophyte
A plant which behaves as hydrophyte in the rainy season and a xerophyte in the dry season.

trophophytes
plural of trophophyte

trophoplast
Any of various organelles found in plant and algae cells, such as a chloroplast, chromoplast, leucoplast, or gerontoplast; a plastid.

trophoplasts
plural of trophoplast

trophywort
A plant of species Tropaeolum majus.

tropophyte
Any plant that lives in an environment in which heavy rainfall alternates with periods of drought

tropophytes
plural of tropophyte

trunkwood
The wood derived from a trunk of a tree.

tsuga
Any tree of genus Tsuga of conifers in the family Pinaceae, of which there are eight, nine, or ten species (depending on the authority), with four species occurring in North America and four to six in eastern Asia.

tsugaresinol
Synonym of conidendrin.

tsugas
plural of tsuga

tuberose
tuberous

tuberoses
plural of tuberose

tubestock
plant(s) that are ready to be repotted or planted

tubog
Ficus nota; a small tree endemic to the Philippines.

tubogs
plural of tubog

tuckamore
A spruce tree bent and entangled by winds on the coastal shores of Newfoundland.

tuckamores
plural of tuckamore

tuckeroo
A flowering tree, Cupaniopsis anacardioides, native to northern and eastern Australia.

tuckeroos
plural of tuckeroo

tulbaghia
Any plant in the genus Tulbaghia.

tulbaghias
plural of tulbaghia

tumatakuru
Synonym of matagouri.

tumatukuru
Alternative form of tumatakuru.

tumbleweed
Any plant which habitually breaks away from its roots once dry, forming a light, rolling mass which is driven by the wind from place to place; as Russian thistle, wild indigo, witch grass, Amaranthus albus, etc.
Describing unwanted silence and inactivity. Often used of a situation when one makes a statement that is ignored or ill-received by one's audience, as the resultant silence is likened to that of a desolate desert with rolling tumbleweeds.
A tan colour, like that of a tumbleweed.

tumbleweeds
plural of tumbleweed

tung
Obsolete spelling of tongue, both as language and as part of the body.

tungs
plural of tung

tunhoof
ground-ivy (Glechoma hederacea)

tupaiid
Any of the family Tupaiidae of tree shrews.

tupaiids
plural of tupaiid

tupakihi
The tutu, a shrub of New Zealand.

turnipweed
The plant Rapistrum rugosum.

turquoiseberries
plural of turquoiseberry

turquoiseberry
Any of various plants with blue berries, or the berries themselves:
Any of various plants with blue berries, or the berries themselves:

turriane
A (14-p,0-o)cyclophane derived from the gum from the wood of the plant Grevillea striata, consisting of biphenyl joined in a ring by a chain of fourteen carbon atoms.

turrianes
plural of turriane

tussac
Obsolete form of tussock.

tussack
Obsolete form of tussock.

tussacks
plural of tussack

tussacs
plural of tussac

tussock
A tuft or clump of green grass or similar verdure, forming a small hillock.
Tussock grass.

tussocks
plural of tussock

tussuck
Archaic form of tussock.

tussucks
plural of tussuck

twinbugs
The plant Dicoria canescens.

twiner
One who or that which twines.
Any plant that twines about a support.

twiners
plural of twiner

twinevine
A flowering American vine of the genus Funastrum.

twistflower
Any herb of the genus Streptanthus.

tylakoid
Misspelling of thylakoid.

tylecodon
a genus of succulent plants in the family Crassulaceae

tylose
A balloon-like growth in a plant cavity; a tylosis.

typaspidoside
Any of a group of stanol saponins found in aspidistra plants

typaspidosides
plural of typaspidoside

ucuuba
The tree Virola sebifera.

ucuubas
plural of ucuuba

ugli
Citrus × paradisi, a cross between a tangerine, Citrus reticulata and grapefruit Citrus paradisi, grown in the West Indies.

uhaloa
Waltheria indica, a plant in the mallow family.

ukpaka
oilbean

ulcera
plural of ulcus

ulcus
A rounded, pore-like aperture at either pole of a pollen grain.
Synonym of ulcer.

ule
A Mexican and Central American tree (Castilla elastica), related to the breadfruit tree, whose milky juice contains caoutchouc.

ulmoside
An aucubigenin diglycoside found in the bark of Ulmus wallichiana.

ulodendron
Any of various trees known only as fossils from the Pennsylvanian period, and belonging to the genus Ulodendron.

ulodendrons
plural of ulodendron

uluhe
The fern Dicranopteris linearis.

uluhi
Alternative form of uluhe (“kind of fern”).

ulvalean
Any green alga of the order Ulvales

ulvaleans
plural of ulvalean

ulvoid
Any green alga of the genus Ulva.

ulvoids
plural of ulvoid

ulvophycean
Any green alga of the class Ulvophyceae

ulvophyceans
plural of ulvophycean

ulvophyte
Any green alga of the class Ulvophyceae

ulvophytes
plural of ulvophyte

umbel
A flat-topped or rounded flower-cluster (= inflorescence) in which the individual flower stalks arise from the same point, the youngest flowers being at the centre.
The pileus of certain fungi.

umbella
Synonym of umbel.

umbellae
plural of umbella

umbellifer
Any plant of the family Apiaceae, also called Umbelliferae, whose inflorescence is an umbel, such as a carrot or celery.

umbellifers
plural of umbellifer

umbels
plural of umbel

umbelwort
Any plant of the Umbelliferae (Apiaceae).

umbelworts
plural of umbelwort

umbrella grass
Any of several species of grasses and sedges:
Any of several species of grasses and sedges:
Any of several species of grasses and sedges:
Any of several species of grasses and sedges:
Any of several species of grasses and sedges:

umbrella grasses
plural of umbrella grass

umbrellawort
Any of various plants in the genus Mirabilis.
Any of various plants in the genus Tauschia.

umburana
A species of leguminous tree, Amburana cearensis, native to South America and often used for timber.

umburanas
plural of umburana

umzimbeet
Millettia grandis, a species of flowering legume tree native to South Africa.

unamo
The palm tree Oenocarpus bataua.

unamu
Alternative form of unamo.

unangia
Unilocular reproductive structures of algae, fungi etc.

underbark
The inner layer of tree bark, beneath the overbark.

undercause
The underlying cause; root cause.

undercauses
plural of undercause

underleaf
A lower leaf on a plant.
A prolific kind of cider apple.

underleaves
plural of underleaf

undershrub
A low-growing shrub.

undershrubs
plural of undershrub

unifoliolates
plural of unifoliolate

unitree
A unique tree (for a set of vertices)

unitrees
plural of unitree