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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.
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)
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.
The alternate leaves are bipinnate compound, 15–40 cm (5.91–15.75 in) long and 17 cm (6.69 in) broad with a 2–6 cm (0.79–2.36 in) petiole bearing four to 15 pairs of pinnae, each pinna with 40–70 leaflets; the leaflets are slender, oblong, 8–15 mm (0.315–0.591 in) long by 2–4 mm (0.079–0.157 in) wide. Near its base, the twiggy ...
The leaves are bipinnate or are modified to vertically oriented phyllodes. A few have cladodes rather than leaves. [38] Extrafloral nectaries may be present on the petiole and rachis, and the pinnule tips may carry protein-lipid Beltian bodies. [37] The leaflets are usually opposite, and are carried on shortly stalks or are sessile.
Aralia spinosa is an aromatic, spiny deciduous shrub or small tree growing 2–8 m (7–26 ft) tall. It has a simple or, occasionally, branched stem with very large bipinnate leaves 70–120 cm (30–45 in) long.
Banksia bipinnatifida is a prostrate shrub with a lignotuber, an underground stem and only a few above-ground leaves. The leaves are bipinnatipartite, meaning that they are deeply lobed, the lobes themselves lobed, giving the impression of a bipinnate leaf. Each leaf is 70–330 mm (2.8–13.0 in) long and 30–70 mm (1.2–2.8 in) wide in ...
The leaves are bipinnate with 7 to 31 pairs of pinnae, each with 25 to 78 pairs of pinnules. There is a spherical gland up to 8 mm (0.31 in) below the lowest pair of pinnae. The scented flowers are arranged in spherical heads of 20 to 40, pale yellow or cream-coloured, with the heads on hairy peduncles 2–8 mm (0.08–0.31 in) long. Flowering ...