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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)
paripinnate: pinnately compound leaves in which leaflets are borne in pairs along the rachis without a single terminal leaflet; also called "even-pinnate". imparipinnate: pinnately compound leaves in which there is a lone terminal leaflet rather than a terminal pair of leaflets; also called "odd-pinnate".
The leaves are up to 45 cm (18 in) long and bi-pinnately compound, with leaflets little more than 1 cm (0.4 in) long. There is a white form available from nurseries. The unusually shaped, tough pods, which are 5 to 8 cm (2 to 3 in) across, are often gathered, cleaned and used to decorate Christmas trees and dried arrangements.
The green colored leaves are ovate-acute or acuminate shaped and are either pinnatipartite or pinnately compound. The surface of the leaves are glabrous, have no hairs, with a wavy leaf margin and contain no stipules. These leaves are about 0.35 mm thick that are arranged in whorls of three and also include short petioles.
The leaves are alternate, bipinnately compound leaves; with an ovate shape and a pinnate venation, they have a green color which turns yellow in fall, leavelets measuring between 5–10 cm long. The flowers are small and yellow with a touch of red at the base, with four petals, produced in large branched panicles that are 20–50 cm long. They ...
The leaves are pinnately compound on older trees but bipinnately compound on vigorous young trees. [4] The leaflets are 1.4–3.6 cm (1 ⁄ 2 – 1 + 1 ⁄ 2 in) long when compound and very slightly smaller when bipinnate. [7] The leaves are green in summer and turn yellow in autumn in shades ranging from cream and tan to golden yellow. [8]
Dichrostachys cinerea in flower. Dichrostachys is an Old World genus of flowering plants in the family Fabaceae.Their Acacia-like leaves are bi-pinnately compound.Unlike Acacia their thorns are hardened branchlets rather than modified stipules.
Doubly pinnate; e.g. a compound leaf with individual leaflet s pinnately divided. bipinnatisect A pinnatisect leaf with deeply dissected segments. bisexual Bearing both male and female reproductive organs; usually, flowers with both stamen s and carpel s; synonymous with hermaphrodite, synoecious, and monoclinous.