Gastrolobium propinquum is a shrub in the family Fabaceae, endemic to the Southwest Australia savanna region,[1] which is toxic to many animals.

These are orange, yellow and red, their bracts are chestnut brown, and are held in long and slender racemes.

Leaves appear in threes, are between 30 and 50 millimetres long, slightly folded along the central vein and finely pointed at the tip.

[4] This species is usually found along hills and flats, favouring drainage and seasonally wet areas.

It is known to occur in two regions, specimen collections have been made in the Avon Wheatbelt and in the Geraldton Sandplains to the west.