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Compound leaves may be pinnate with pinnae (leaflets) on both sides of a rachis (axis), or may be palmate with multiple leaflets arising from a single point. [1] Leaf structure is described by several terms that include: Bipinnate leaf anatomy with labels showing alternative usages A ternate compound leaf with a petiole but no rachis (or rachillae)
Some apply it to the leaflets of a pinna, especially the leaflets of bipinnate or tripinnate leaves. [7] Others also or alternatively apply it to second or third order divisions of a bipinnate or tripinnate leaf. [8] It is the ultimate free division (or leaflet) of a compound leaf, or a pinnate subdivision of a multipinnate leaf.
Its leaves are bipinnately compound, up to 5 - 9 of mostly opposite pinnae and each pinnae having 12 - 24 leaflets. Leaflets alternate, can reach 2 cm long and 1 cm wide, they are narrowly oblong to elliptic in shape and rounded at both the apex and the base. [ 5 ]
(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.
Pentaclethra macrophylla, also known as the African oil bean, tree is a large size tree with long bipinnate compound leaves that is endemic to West and Central Africa. It is within the family Fabaceae. Seeds of the species are prepared and fermented to make Ugba, a soup condiment in Nigeria.
Macroneuropteris scheuchzeri specimen clearly showing the hair-like structures on the leaves. The foliage of the Macroneuropteris species consists of very large frond-like leaves that are bipartite (divided in two) near the base, forming two large bipinnately compound parts (see illustration). These compound fronds can be as large as several ...
The bipinnately compound leaves are up to 15 centimetres (5.9 in) long. Flowers of the Dichrostachys cinerea are characteristically arranged in bicoloured cylindrical spikes that resemble Chinese lanterns, 6 to 8 centimetres (2.4 to 3.1 in) long and fragrant. [ 9 ]
Meadow-rue leaves are alternate, bipinnately compound, and commonly glaucous blue-green in colour. [citation needed]The flowers are small and apetalous (no petals), but have numerous long stamens, often brightly white, yellow, pink or pale purple, and are produced in conspicuous dense inflorescences.