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The two main classes of compound leaf morphology are palmate and pinnate. For example, a hemp plant has palmate compound leaves, whereas some species of Acacia have pinnate leaves. The ultimate free division (or leaflet) of a compound leaf, or a pinnate subdivision of a multipinnate leaf is called a pinnule or pinnula.
The two species may be distinguished by their leaves. As described above, Aralia nudicaulis has pinnately compound leaves while Panax quinquefolius has palmately compound leaves (with leaflets radiating from a single point). [6] Because it sometimes grows with groups of 3 leaflets, it can be mistaken for poison ivy. Wild sarsaparilla lacks a ...
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)
Maples are distinguished by opposite leaf arrangement. The leaves in most species are palmate veined and lobed, with 3 to 9 (rarely to 13) veins each leading to a lobe, one of which is central or apical. A small number of species differ in having palmate compound, pinnate compound, pinnate veined or unlobed
Most palms in this subfamily have palmately lobed leaves and solitary flowers with three, or sometimes four carpels. The fruit normally develops from only one carpel. Subfamily Nypoideae contains only one species, Nypa fruticans, [19] which has large, pinnate leaves. The fruit is unusual in that it floats, and the stem is underground and ...
(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.
While both poison ivy and Acer negundo have compound leaves composed of three leaflets with ragged edges, Acer negundo exhibits an opposite branching pattern, as opposed to the alternating pattern of poison ivy. [16] Like poison ivy, Acer negundo is also a noted riparian species, and can often be found growing along riverbeds and in wet soils ...
Leaves are sometimes lauroid (resembling Laurus) and are simple to compound; when compound, they are ternate, pinnate, or palmate. [citation needed] Araliaceae are found in the pluvial montane forest, very humid montane forest, and humid lowland river forest regions. They are also present in laurel forest, cloud forest, and warm, humid habitats.