Erect shrub to about 1 m tall. Leaves of 3 linear leaflets, each 2-3 cm long, 1 mm wide; stipules absent. Flowers solitary or few in terminal heads; spring. Corolla 1.5-2.5 cm long, yellow. Fruit pod obovoid to oblong, to 1.5 cm long with a short stalk, containing 6-15 seeds.
G. huegelii Benth., Pale Wedge Pea, from NSW, Vic and Tas has leaf margins strongly bent back and flowers yellow with green markings while G. ecostatum, Dwarf Wedge Pea, from WA grows to only 0.5 m tall and has creamy to reddish flowers.
Source: (2002). Fabaceae. In: . Horticultural Flora of South-eastern Australia. Volume 3. Flowering plants. Dicotyledons. Part 2. The identification of garden and cultivated plants. University of New South Wales Press.