Gompholobium polyzygum F.Muell.
Fragm. 3:29 (1862)

Conservation Code: Not threatened
Naturalised Status: Native to Western Australia
Name Status: Current

Brief Description
Grazyna Paczkowska, Tuesday 18 June 1996

Erect, bushy shrub, 0.3-1 m high. Fl. yellow-orange, Jul to Oct. Stony red loam, red sand. Sandstone ridges, sandplains, stony flats.


Beard’s Provinces: Eremaean Province.

IBRA Regions: Central Ranges, Gascoyne, Gibson Desert, Great Sandy Desert, Great Victoria Desert, Little Sandy Desert, Murchison, Pilbara.

IBRA Subregions: Ashburton, Augustus, Central, Chichester, Eastern Murchison, Fortescue, Hamersley, Lateritic Plain, Mackay, Mann-Musgrave Block, McLarty, Rudall, Trainor.

Local Government Areas (LGAs): Ashburton, East Pilbara, Laverton, Meekatharra, Ngaanyatjarraku, Upper Gascoyne, Wiluna.

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

Erect, shrub, spindly shrub (broom-like). Stems terete, not spiny, glabrous; pustules or glands absent. Leaves or phylloclades clearly present, compound, alternate, not continuous with stem, 15-35 mm long, hairy, with simple hairs, flat with flat margins; margins entire; tubercles absent, leaflets 11-29, pinnately arranged, terminal leaflet present, stalked; pustules or glands absent. Stipules present and persistent to older leaves. Pedicel present, 4-6.5 mm long, hairy. Bracteoles present and persistent. Calyx 7-8 mm long, not accrescent, hairy, with simple hairs, ribless; pustules or glands absent. Corolla 11-12 mm long, multicoloured, mostly yellow or orange, with some yellow or orange spots, streaks or blotches; claws present; standard 10.2 mm long, glabrous, not auriculate, wings 8-9 mm long, not auriculate, keel 10-11 mm long, not beaked, not auriculate, glabrous. Stamens ten, at two different levels (filaments alternately long and short); filaments free (or united at the very base), 7-8 mm long. Ovary stipitate, hairy or glandular; style 10-10.5 mm long, hairy or glandular towards the base, not bearded, terete. Fruit stipitate, round in cross-section, not beaked. Flowers in July, August, September and October. Occurs in the in the Great Sandy Desert, Pilbara, Gascoyne, Little Sandy Desert, Gibson Desert, Central Ranges, Murchison and Great Victorian Desert IBRA regions.