Chorizema rhombeum R.Br.

Taxonomic Identity

Chorizema rhombeum R.Br. is a prostrate, ascending, or twining shrub.

Leaf Morphology

Its leaves are either egg-shaped with the narrow end at the base, or rhombic, measuring 7–25 mm long and 6–8 mm wide; upper leaves are often lance-shaped and longer than lower leaves.

Flower Color

Flowers of this species range in color from orange to pink, or red and yellow.

Inflorescence Structure

They are arranged on a peduncle, with each individual flower borne on a pedicel 3.0–3.4 mm long.

Sepal Characteristics

The sepals are 9–10 mm long and covered in hairs, with the upper lobes joined together above the middle.

Petal Dimensions

The standard petal is 4–10 mm long and glabrous, the wing petals are 11–12 mm long, and the keel petal is 9–11 mm long.

Flowering and Fruit

Flowering takes place from August to December, and the resulting seed pod is approximately 6 mm long.

Habitat Preferences

This species grows on gentle slopes, river banks, and exposed coastal sites.

Geographic Distribution

Its distribution extends from around Perth to the Stirling Range, within the Esperance Plains, Jarrah Forest, Swan Coastal Plain and Warren bioregions of south-western Western Australia.