Vicia sativa subsp. nigra (L.) Ehrh.
Hannover.Mag. 15):229 (1780)

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

Brief Description
Amanda Spooner, Friday 24 August 2007

Prostrate, twining or scrambling annual, herb, 0.2-1.1(-3) m high. Fl. blue-purple-pink/white, Jul to Dec. Grey, yellow or brown sand, black sandy clay, limestone, quartzite. Swampy damp areas, breakaways, valleys, road verges, croplands, wastelands.

Distribution

Beard’s Provinces: Eremaean Province, South-West Province.

IBRA Regions: Avon Wheatbelt, Esperance Plains, Jarrah Forest, Nullarbor, Swan Coastal Plain, Warren.

IBRA Subregions: Avon Wheatbelt P2, Central band, Nullarbor Plain, Fitzgerald, Northern Jarrah Forest, Perth, Recherche, Southern Jarrah Forest, Warren.

IMCRA Regions: Central West Coast, Leeuwin-Naturaliste, WA South Coast.

Local Government Areas (LGAs): Albany, Augusta Margaret River, Bayswater, Bunbury, Busselton, Cambridge, Canning, Capel, Cockburn, Cranbrook, Denmark, Esperance, Joondalup, Kalamunda, Kalgoorlie-Boulder, Manjimup, Melville, Murray, Nannup, Nedlands, Perth, Plantagenet, Quairading, Stirling, Subiaco, Wagin, Wanneroo.

Scientific Description
C. Hollister and K.R. Thiele, Tuesday 6 October 2020

Twining or climbing plants. Stems terete, not spiny, glabrous; pustules or glands absent. Leaves or phylloclades clearly present, compound, alternate, continuous with stem, 45-100 mm long, glabrous, flat with flat margins; margins entire; tubercles absent, leaflets 8-16, pinnately arranged, terminal leaflet absent, stalked; pustules or glands absent. Stipules present and persistent to older leaves, 3-8 mm long, without glands, ribless. Pedicel present, 2-4 mm long, hairy. Bracteoles absent. Calyx 10-11 mm long, not accrescent, hairy, with simple hairs, ribless; pustules or glands absent. Corolla 17.5-21 mm long, multicoloured, mostly pink, purple, white or blue, with some pink, purple, white or blue spots, streaks or blotches; claws present; standard 16.5-18 mm long, glabrous, not auriculate, wings 15-17 mm long, not auriculate, keel 10.5-12 mm long, not beaked, not auriculate. Stamens ten, at two different levels (filaments alternately long and short); filaments united in an open sheath with one free stamen, 10-10.3 mm long. Ovary stipitate, hairy or glandular; style 11.5-12 mm long, hairy or glandular towards the base, bearded (with a tuft of hairs at apex), terete. Fruit dehiscent (a pod or follicle), 40-55 mm long, 5-7 mm wide, stipitate or sessile or subsessile, not constricted between the seeds, flat or compressed, glabrous, not beaked. Flowers in August, September, October and November. Occurs in the Eremaean and South-West Botanical Province, in the Nullarbor, Avon Wheatbelt, Jarrah Forest, Warren, Esperance and Swan Coastal Plain IBRA regions.