Gastrolobium graniticum (S.Moore) Crisp
C.H.Stirt., Adv.Legume Syst. 3: 30 (1987)

Conservation Code: Threatened Flora (Declared Rare Flora — Extant)
Naturalised Status: Native to Western Australia
Name Status: Current

Brief Description
Amanda Spooner, Thursday 9 October 2003

Erect, open shrub, to 2.5 m high. Fl. yellow&orange&red, Aug to Sep. Sand, sandy loam, granite. Margins of rock outcrops, along drainage lines.


Beard’s Provinces: Eremaean Province, South-West Province.

IBRA Regions: Avon Wheatbelt, Coolgardie.

IBRA Subregions: Avon Wheatbelt P1, Eastern Goldfield, Southern Cross.

Local Government Areas (LGAs): Coolgardie, Narembeen, Yilgarn.

Scientific Description
C. Hollister and K.R. Thiele, Friday 17 January 2020

Erect, shrub, spindly shrub (broom-like). Stems glabrous; pustules or glands absent. Leaves or phylloclades clearly present, simple, opposite, continuous with stem, 28-75 mm long, 15-35 mm wide, hairy or glabrous, with simple hairs, flat with flat margins; margins entire; tubercles absent; pustules or glands absent. Stipules present and persistent to older leaves. Pedicel present, 2.7-3.5 mm long, hairy. Bracteoles present but early deciduous. Calyx 7-8 mm long, hairy, with simple hairs; pustules or glands absent. Corolla 11.5-15.5 mm long, multicoloured, mostly yellow, red or orange, with some yellow, red or orange spots, streaks or blotches; claws present; standard 10.5-14.6 mm long, glabrous, auriculate, wings 10-12 mm long, auriculate, keel 10-12.5 mm long, auriculate, glabrous. Stamens ten; anthers 0.6-1.2 mm long, at two different levels (filaments alternately long and short); filaments free (or united at the very base), 7.5-13 mm long. Ovary stipitate, hairy or glandular; style 13-13.5 mm long, hairy or glandular towards the base, terete. Fruit dehiscent (a pod or follicle), 14-17 mm long, 7-10 mm wide, stipitate, not constricted between the seeds, round in cross-section, glabrous, not beaked. Flowers in August and September. Occurs in the Eremaean and South-West Botanical Province, in the Coolgardie and Avon Wheatbelt IBRA regions. Conservation Code Threatened (T).