Gompholobium marginatum R.Br.
W.T.Aiton, Hort.Kew. Ed.2,3:11 (1811)

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

Brief Description
Grazyna Paczkowska, Tuesday 18 June 1996

Prostrate or low spreading shrub, 0.05-0.4 m high. Fl. yellow, Aug to Nov. Lateritic gravelly soils, granitic soils.


Beard’s Provinces: South-West Province.

IBRA Regions: Avon Wheatbelt, Esperance Plains, Geraldton Sandplains, Jarrah Forest, Mallee, Swan Coastal Plain, Warren.

IBRA Subregions: Avon Wheatbelt P1, Avon Wheatbelt P2, Eastern Mallee, Fitzgerald, Geraldton Hills, Lesueur Sandplain, Northern Jarrah Forest, Perth, Recherche, Southern Jarrah Forest, Warren, Western Mallee.

IMCRA Regions: Leeuwin-Naturaliste.

Local Government Areas (LGAs): Albany, Armadale, Augusta Margaret River, Beverley, Boddington, Boyup Brook, Bridgetown-Greenbushes, Broomehill-Tambellup, Busselton, Capel, Chapman Valley, Chittering, Collie, Cranbrook, Cuballing, Dandaragan, Dardanup, Donnybrook-Balingup, Dumbleyung, Esperance, Gnowangerup, Gosnells, Harvey, Jerramungup, Kalamunda, Kent, Kojonup, Kulin, Lake Grace, Manjimup, Moora, Mundaring, Murray, Nannup, Narrogin, Northam, Northampton, Pingelly, Plantagenet, Ravensthorpe, Serpentine-Jarrahdale, Swan, Toodyay, Victoria Plains, Wagin, Wandering, West Arthur, Westonia, Wickepin, Williams, Woodanilling, York.

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

Twining or climbing plants, shrub, spindly shrub (broom-like). Stems terete, spiny at least in part, glabrous; pustules or glands absent. Leaves or phylloclades clearly present, compound, alternate, not continuous with stem, 10-25 mm long, glabrous, flat with flat margins; margins entire; tubercles absent, palmately arranged, terminal leaflet present, sessile; pustules or glands absent. Stipules apparently absent even from the youngest leaves, 2.3-3 mm long, without glands, ribless. Pedicel present, 10-12.7 mm long, glabrous. Bracteoles present and persistent, striate (?). Calyx 5.5-8 mm long, not accrescent, glabrous, ribless; pustules or glands absent. Corolla 7-11 mm long, uniformly coloured, yellow; claws present; standard 8-10 mm long, glabrous, not auriculate, wings 6.5-8 mm long, not auriculate, keel 6-7 mm long, not beaked, auriculate or not auriculate, glabrous. Stamens ten; anthers 0.6-0.8 mm long, at two different levels (filaments alternately long and short); filaments free (or united at the very base), 3.2-6.7 mm long. Ovary stipitate or sessile or subsessile, glabrous; style 5.5-7.5 mm long, glabrous, not bearded, terete. Fruit dehiscent (a pod or follicle), 10 mm long, 5-10 mm wide, sessile or subsessile, not constricted between the seeds, round in cross-section, glabrous, not beaked. Flowers in August, September, October and November. Occurs in the South-West Botanical Province, in the Geraldton Sandplains, Avon Wheatbelt, Jarrah Forest, Mallee, Warren, Esperance and Swan Coastal Plain IBRA regions.