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Sticky trichomes of a carnivorous plant, Drosera capensis with a trapped insect, contain proteolytic enzymes Glandular trichomes on Cannabis, rich in cannabinoids Trichomes on the surface of a Solanum scabrum leaf Trichomes on the petiole of a Solanum quitoense leaf Antirrhinum majus buds with glandular hairs Scanning electron micrograph of a trichome on a leaf of Arabidopsis thaliana; the ...
Scanning electron microscope image of Nicotiana alata leaf's epidermis, showing trichomes (hair-like appendages) and stomata (eye-shaped slits, visible at full resolution) The plant epidermis consists of three main cell types: pavement cells, guard cells and their subsidiary cells that surround the stomata and trichomes, otherwise known as leaf ...
(of a compound leaf) Having precisely two leaflet s, usually in a symmetrical pair, e.g. a leaf of Colophospermum mopane. Compare jugate lobed leaf, e.g. most species of Bauhinia. bifusiform Fusiform with a pinch in the middle. bilabiate Having two lips, e.g. the form of the petal s in many irregular flowers. bilateral 1.
Scanning electron micrograph of a trichome, a leaf hair of A. thaliana, a unique structure made of a single cell. A. thaliana can complete its entire lifecycle in six weeks. The central stem that produces flowers grows after about 3 weeks, and the flowers naturally self-pollinate.
Trichomes usually reverse their polarity randomly with an average period on the order of minutes to hours. [100] [101] Many species also form a semi-rigid sheath that is left behind as a hollow tube as the trichome moves forward. When the trichome reverses direction, it can move back into the sheath or break out. [102] [3]
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Common mullein (Verbascum thapsus) leaves are covered in dense, stellate trichomes. Scanning electron microscope image of trichomes on the lower surface of a Coleus blumei leaf Silky aster (Symphyotrichum sericeum) leaves are sericeous. "Hairs" on plants are properly called trichomes. Leaves can show several degrees of hairiness.
In land plants, rhizoids are trichomes that anchor the plant to the ground. In the liverworts , they are absent or unicellular, but they are multicellular in mosses . In vascular plants , they are often called root hairs and may be unicellular or multicellular.