Gastrolobium glaucum C.A.Gardner Spike Poison
J.Roy.Soc.Western Australia 27:180 (1942)

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

Brief Description
Amanda Spooner, Tuesday 9 December 2003

Low shrub, to 1.2 m high. Fl. yellow&orange&red, Aug to Oct. Sandy, often gravelly soils over laterite. Slopes, breakaways.


Beard’s Provinces: South-West Province.

IBRA Regions: Avon Wheatbelt.

IBRA Subregions: Avon Wheatbelt P1, Avon Wheatbelt P2.

Local Government Areas (LGAs): Wongan-Ballidu.

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

Erect, shrub, spindly shrub (broom-like). Stems terete, spiny at least in part, hairy; pustules or glands absent. Leaves or phylloclades clearly present, simple, opposite or whorled, continuous with stem, 7-20 mm long, 6-15 mm wide, glabrous, flat with flat margins or flat with recurved margins; margins entire; tubercles absent; pustules or glands absent. Stipules present and persistent to older leaves, 3.4-4.2 mm long, without glands. Pedicel present, 1.8-2 mm long, hairy. Bracteoles present but early deciduous. Calyx 5.4-6 mm long, hairy, with simple hairs; pustules or glands absent. Corolla 9-12 mm long, multicoloured, mostly yellow, red or orange, with some yellow, red or orange spots, streaks or blotches; claws present; standard 8-11 mm long, glabrous, auriculate, wings 5.5-8.7 mm long, auriculate, keel 6.7-8 mm long, auriculate, glabrous. Stamens ten; anthers 0.6-0.7 mm long, at two different levels (filaments alternately long and short); filaments free (or united at the very base), 5-6.8 mm long. Ovary stipitate, hairy or glandular; style 6-7 mm long, hairy or glandular towards the base, terete. Fruit dehiscent (a pod or follicle), stipitate, not constricted between the seeds, round in cross-section, not beaked. Flowers in August, September and October. Occurs in the South-West Botanical Province, in the Avon Wheatbelt IBRA regions. Conservation Code Threatened (T).