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Chart illustrating leaf morphology terms. The following terms are used to describe leaf morphology in the description and taxonomy of plants. Leaves may be simple (that is, the leaf blade or 'lamina' is undivided) or compound (that is, the leaf blade is divided into two or more leaflets). [1]
(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.
Duration of leaves: Deciduous – leaves are shed after the growing season. Evergreen – leaves are retained throughout the year, sometimes for several years. Fugacious – lasting for a short time: soon falling away from the parent plant. Marcescent – dead leaves, calyx, or petals are persistent and retained. Persistent – see Marcescence ...
Scaevola aemula is a mat-forming, perennial herb that grows up to 50 cm high with brown, coarsely hairy, terete stems. The leaves are elliptic to egg-shaped tapering near the base, sessile, edges toothed, up to 10–88 mm (0.39–3.46 in) long and 4–31 mm (0.16–1.22 in) wide, decreasing in size near the flowers.
After harvesting, the leaves are left upon the field to dry under the sun. The thin layer of wax coating plant material disintegrates into a powder, which is then separated through beating and whisking the dried leaves. The powder is concentrated in a mortar, to be mixed with water and melted to produce liquid wax.
It is one of the largest palms with individual specimens having reached heights of up to 25 m (82 ft) with stems up to 1.3 m (4.3 ft) in diameter. [5] It is a fan palm (Arecaceae tribe Corypheae), with large, palmate leaves up to 5 m (16 ft) in diameter, with a petiole up to 4 m (13 ft), and up to 130 leaflets.
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Autumn leaf color is a phenomenon that affects the normally green leaves of many deciduous trees and shrubs by which they take on, during a few weeks in the autumn season, various shades of yellow, orange, red, purple, and brown. [1]