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The leaves are simple, pinnate, or bipinnate, and arranged in opposite pairs. The flowers are produced in a capitulum with a ring of broad ray florets and a center of disc florets; flower color varies noticeably between the different species.
The three leaflets on the pinnate leaves are similar to each other, 3–10 mm (0.1–0.4 in) long and 1–1.5 mm (0.04–0.06 in) wide. The flowers are pale to deep pink and are usually arranged singly in leaf axils near the end of the branches on a pedicel 2–13 mm (0.08–0.5 in) long.
A leaflet (occasionally called foliole) in botany is a leaf-like part of a compound leaf. [1] Though it resembles an entire leaf, a leaflet is not borne on a main plant stem or branch, as a leaf is, but rather on a petiole or a branch of the leaf. [2] Compound leaves are common in many plant families and they differ widely in morphology. [3]
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]
Gompholobium pinnatum, commonly known as pinnate wedge-pea, [2] is a species of flowering plant in the pea family Fabaceae and is endemic to eastern Australia. It is an ascending or erect shrub with pinnate leaves and yellow flowers with red marks.
The leaves are alternate and are a shiny dark green on top and light brown on the bottom. They are simple leaf types with pinnate venation. The leaves are ovate and range in length from 3 to 11 cm (1.2 to 4.3 in). The breadth of the leaves ranges from 2 to 5 cm (0.79 to 1.97 in). The leaves are evergreen so they are present year round.
The alternate leaves are usually divided into a petiole and a leaf blade. The smooth or hairy leaf blade is simple or one to two-pinnate. The leaflets are lobed three to eleven times. The leaf margin is smooth to roughly serrated. The lower leaves are 38 to 127 centimetres (15 to 50 inches) long and 25 to 64 cm (10 to 25 in) inches wide.
Boronia pinnata is an erect, woody shrub that typically grows to a height of about 1.5 m (4.9 ft) and is glabrous, apart from the flowers.The leaves are pinnate with up to thirteen narrow elliptic to narrow oblong leaflets.