Category: T
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Terminal
At apex of part under discussion; (Of inflorescences) ending the axis, as opposed to axillary. Anything such as a bud, flower, or flower cluster growing at the apex of a stem, branch, or shoot. At the end of a stem or branch. Usually referring to an inflorescence. Appearing at the end of a shoot, as…
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Tergeminate
‘Thrice twin’, With three pairs of leaflets; Compound leaf with three pinnae, each of these consisting of a pair of leaflets [obscure term, not recommended].
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Terete
Circular in cross-section (usually of a cylindrical structure lacking grooves or ridges); Sometimes taken to mean cylindrical and tapering gently at one end, but this is incorrect. Slender and more or less cylindroidal, approximately circular in cross division, but of varying diameter. Long and round ; same as cylindrical, only may taper. Approximately circular in…
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Teratological
(Of an organ) abnormal, concerning monstrosities.
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Tepal
A division of the perianth, i.e. a sepal or petal, used especially when it is unclear which is which. A sepal or petal of a flower, when the petals and sepals are not clearly distinguished from each other.
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Tenuous
Thin, narrowed, weak, fine. Slender or finely shaped.
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Tenuinucellate
(Of ovules) with a thin (e.g. one-cell layer) nucellus until embryo-sac formation. Opposite: crassinucellate.
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Tenuiexinous
(Of pollen) with a thin exine.
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Tendril
Slender coiling structure derived from branch, leaf or inflorescence and used in climbing. A slender, coiling, or twining organ (representing a modified stem or leaf or part thereof) by which a climbing plant grasps its support. a slender organ formed from a modified stem, leaf or leaflet which, by coiling around objects, supports a climbing…
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Tegumen
Inner seed coat (the outer one is the testa).