Bossiaea rhombifolia



Bossiaea rhombifolia, is a species of flowering plant in the family Fabaceae and is endemic to eastern Australia. It is an erect, glabrous shrub with diamond-shaped, more or less round or broadly egg-shaped leaves, and yellow and red or pinkish flowers.

Description
Bossiaea rhombifolia is an erect, more or less glabrous shrub that typically grows to a height of up to 2 m, and has slightly flattened young stems. The leaves are diamond-shaped, more or less round or broadly egg-shaped, 4–12 mm long and wide on a petiole 0.5–1.0 mm long with triangular brown stipules about 1 mm long at the base. The flowers are 7–12 mm long on pedicels up to 5 mm long with bracts 0.5–0.8 mm long at the base. The five sepals are 2.7–5 mm long and joined at the base forming a tube, the upper lobes 0.6–1.5 mm long and 1.5–2.5 mm wide, the lower lobes slightly shorter and 0.7–1.0 mm wide. There are egg-shaped bracteoles 0.8–1.5 mm long near the base of the pedicel. The standard petal is yellow with a red base and up to 12 mm long, the wings are brownish-red and 2.5–3.0 mm wide, and the keel is pinkish to dark red and 3–4 mm wide. Flowering occurs from July to October and the fruit is an oblong pod 13–18 mm long.

Taxonomy
Bossiaea rhombifolia was first formally described in 1825 by Augustin Pyramus de Candolle in Prodromus Systematis Naturalis Regni Vegetabilis from un unpublished description by Franz Sieber. The specific epithet (rhombifolia) means "diamond-shaped", referring to the leaves.

Distribution and habitat
This species of Bossiaea grows in woodland and forest from near Stanthorpe in south-eastern Queensland to Wadbilliga National Park near Moruya in south-eastern New South Wales.