- Reference
- J.Bot. 45:420 (1907)
- Conservation Code
- Not threatened
- Naturalised Status
- Alien to Western Australia
- Name Status
- Current
Prostrate to ascending annual, herb, 0.05-0.3(-0.5) m high, with glabrous, pinnate leaves. Fl. yellow, Aug to Dec or Feb. Gravelly sand, loam & clay soils. Disturbed areas, roadsides.
Scientific Description
Twining or climbing plants. Stems terete, not spiny, hairy; pustules or glands absent. Leaves or phylloclades clearly present, compound, alternate, continuous with stem, 45-60 mm long, hairy, with simple hairs, flat with flat margins; margins entire; tubercles absent, leaflets 11-19, pinnately arranged, terminal leaflet present, stalked; pustules or glands absent. Stipules present and persistent to older leaves. Pedicel present, 0.5 mm long, hairy. Calyx 5-5.5 mm long, not accrescent, hairy, with simple hairs, ribless; pustules or glands absent. Corolla 8-9 mm long, uniformly coloured, yellow; claws present; standard 7-8 mm long, glabrous, not auriculate, wings 5.5-6 mm long, not auriculate, keel 6-7 mm long, not beaked, not auriculate, glabrous. Stamens ten, at two different levels (filaments alternately long and short); filaments united in an open sheath with one free stamen, 4.5-5 mm long. Ovary sessile or subsessile, glabrous; style 5-7 mm long, glabrous, not bearded, terete. Fruit indehiscent and splitting into sections (schizocarps), sessile or subsessile, constricted between the seeds, round in cross-section, not beaked. Flowers in February, August, September, October, November and December. Occurs in the South-West Botanical Province, in the Avon Wheatbelt, Jarrah Forest, Warren, Esperance and Swan Coastal Plain IBRA regions.
Distribution
- IBRA Regions
- Avon Wheatbelt, Esperance Plains, Jarrah Forest, Swan Coastal Plain, Warren.
- IBRA Subregions
- Fitzgerald, Merredin, Perth, Recherche, Southern Jarrah Forest, Warren.
- IMCRA Regions
- WA South Coast.
- Local Government Areas (LGAs)
- Albany, Armadale, Augusta Margaret River, Boyup Brook, Busselton, Capel, Coorow, Denmark, Esperance, Gnowangerup, Harvey, Jerramungup, Manjimup, Murray, Nannup, Plantagenet, Serpentine-Jarrahdale, Stirling, Swan, Wanneroo.