Lotus subbiflorus Lag.
Varied.Ci. 2(4):213 (1805)

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

Brief Description
Amanda Spooner, Friday 17 August 2007

Open, sprawling annual, herb, to 0.7 m high, to 0.3 wide. Fl. yellow/orange, Oct to Dec or Jan to Feb. Grey, brown or red sandy or gravelly clay, dark sandy loam, often saline, granite, laterite. Plains, valleys, near lakes, creeks, swamps, disturbed sites, roadverges.


Beard’s Provinces: South-West Province.

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

IBRA Subregions: Avon Wheatbelt P1, Avon Wheatbelt P2, Dandaragan Plateau, Lesueur Sandplain, Northern Jarrah Forest, Perth, Southern Jarrah Forest, Warren.

IMCRA Regions: Leeuwin-Naturaliste, WA South Coast.

Local Government Areas (LGAs): Albany, Armadale, Augusta Margaret River, Bridgetown-Greenbushes, Bunbury, Busselton, Canning, Carnamah, Chittering, Cockburn, Collie, Cranbrook, Dandaragan, Denmark, Donnybrook-Balingup, Gingin, Gosnells, Harvey, Kalamunda, Katanning, Kojonup, Manjimup, Mundaring, Murray, Nungarin, Plantagenet, Rockingham, Serpentine-Jarrahdale, Stirling, Swan, Toodyay, Wanneroo, Waroona.

Scientific Description
C. Hollister and K.R. Thiele, Friday 4 September 2020

Prostrate,spreading or scrambling, herb. Stems terete, not spiny, hairy; pustules or glands absent. Leaves or phylloclades clearly present, compound, alternate, continuous with stem, 15-25 mm long, hairy, with simple hairs, flat with flat margins; margins entire; tubercles absent, leaflets 5, pinnately arranged, terminal leaflet present, stalked; pustules or glands absent. Stipules apparently absent even from the youngest leaves or present but early deciduous ( only visible on youngest leaves ). Pedicel present, 1-2 mm long, hairy. Bracteoles present and persistent. Calyx 5-6 mm long, not accrescent, hairy, with simple hairs, ribless; pustules or glands absent. Corolla 8-9 mm long, multicoloured, mostly yellow or orange, with some yellow or orange spots, streaks or blotches; standard 7-8 mm long, glabrous, not auriculate, wings 5-5.5 mm long, auriculate, keel 7-8.2 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, 6.5-7 mm long. Ovary sessile or subsessile, glabrous; style 8-8.5 mm long, glabrous, not bearded, terete. Fruit dehiscent (a pod or follicle), sessile or subsessile, not constricted between the seeds, round in cross-section, not beaked. Flowers in January, February, October, November and December. Occurs in the South-West Botanical Province, in the Avon Wheatbelt, Jarrah Forest, Warren and Swan Coastal Plain IBRA regions.