Category: T
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Trichome
Hair, bristle, prickle or scale; an epidermal outgrowth of diverse form, structure and function but without vascular tissue. A bristle or hair. An outgrowth of the epidermis, which can have various forms, but has no vascular tissue; a hair, bristle, prickle or scale. Crystal-like resin gland on cannabis leaves, stems, and calyxes where most cannabinoids…
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Tricarinate
With three keels.
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Tribe
Taxon ranking above genus and below family. In taxonomy, an occasional subdivision of a family; often equal to or below subfamily and above genus.
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Triaperturate
(Of pollen) with three openings.
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Triandrous
With three stamens.
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Triad
(In Gramineae/Poaceae) used for groups of three spikelets in Zonotriche; (In palms) a group of three florets, the central female, the flanking ones male; (In Amaranthaceae) a cluster of three flowers, a fertile one flanked by two sterile ones. Three organs or three symptoms which are linked together in a group. Set of three similar…
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Tree layer
Upper layer of vegetation in forest or woodland.
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Tree
Perennial woody plant with secondary thickening, with a clear main trunk. (The distinction between tree and shrub is fluid, but generally accepted to be dependent on the single trunk, and on height, a tree being at least 2–3 m tall). Woody, usually tall, perennial higher plants (Angiosperms, Gymnosperms, and some Pterophyta) having usually a main…
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Trapeziform
(Of a plane shape) with four sides, two of which are parallel.
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Transversely
Lying crosswise, at right angles.