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Gompholobium scabrum Sm.

Trans.Linn.Soc.London 9:250 (1808)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status

Erect to spreading shrub, (0.2-)0.4-2.3 m high. Fl. pink-purple, Aug to Nov. Sandy soils, sometimes over laterite. Undulating plains.

Grazyna Paczkowska, Descriptive Catalogue, 18 June 1996

Scientific Description

Erect or prostrate,spreading or scrambling, shrub, spindly shrub (broom-like). Stems terete, not spiny, glabrous; pustules or glands absent. Leaves or phylloclades clearly present, simple, whorled, not continuous with stem, 8.5-11 mm long, 0.6-1 mm wide, glabrous, flat with recurved margins; margins entire; tubercles absent; pustules or glands absent. Stipules apparently absent even from the youngest leaves. Pedicel present, 5-6.5 mm long, glabrous. Bracteoles present and persistent, 1.2-1.4 mm long, glabrous, not striate. Calyx 6.2-8.6 mm long, not accrescent, glabrous, ribless; pustules or glands absent. Corolla 13-18 mm long, multicoloured, mostly pink or purple, with some pink or purple spots, streaks or blotches; claws present; standard 12 mm long, glabrous, not auriculate, wings 17 mm long, not auriculate, keel 10.5-14 mm long, not beaked, not auriculate, glabrous. Stamens ten; anthers 0.7-0.9 mm long, at two different levels (filaments alternately long and short); filaments free (or united at the very base), 11-13 mm long. Ovary stipitate or sessile or subsessile, glabrous; style 13-14 mm long, glabrous, not bearded, terete. Fruit dehiscent (a pod or follicle), stipitate or sessile or subsessile, not constricted between the seeds, round in cross-section, hairy, with simple hairs, not beaked. Flowers in August, September, October and November. Occurs in the South-West Botanical Province, in the Avon Wheatbelt, Jarrah Forest, Mallee, Warren, Esperance and Swan Coastal Plain IBRA regions.

C. Hollister and K.R. Thiele, 24 October 2023


IBRA Regions
Avon Wheatbelt, Esperance Plains, Jarrah Forest, Mallee, Swan Coastal Plain, Warren.
IBRA Subregions
Dandaragan Plateau, Eastern Mallee, Fitzgerald, Katanning, Northern Jarrah Forest, Perth, Recherche, Southern Jarrah Forest, Warren, Western Mallee.
IMCRA Regions
WA South Coast.
Local Government Areas (LGAs)
Albany, Armadale, Augusta Margaret River, Bayswater, Beverley, Boyup Brook, Broomehill-Tambellup, Busselton, Capel, Chittering, Collie, Cranbrook, Cuballing, Denmark, Dumbleyung, Esperance, Gingin, Gnowangerup, Harvey, Jerramungup, Kalamunda, Kent, Manjimup, Murray, Nannup, Narrogin, Plantagenet, Ravensthorpe, Wanneroo, Waroona, West Arthur, Wickepin, York.