Chorizema trigonum is a species of flowering plant in the family Fabaceae and is endemic to the south of Western Australia.

It is an erect, spindly shrub with linear to oblong leaves and orange, red and yellow flowers.

The sepals are softly-hairy and 7.5–9.4 mm (0.30–0.37 in) long, the upper two lobes joined for about half their length and curved.

[6] This species of pea grows in coastal areas in sandy or stony soils in the Esperance Plains bioregion of southern Western Australia.

[3] Chorizema trigonum is listed as "not threatened" by the Western Australian Government Department of Biodiversity, Conservation and Attractions.