Medicago sativa L. Alfalfa
Sp.Pl. 2:778-779 (1753)

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

Brief Description
Amanda Spooner, Friday 17 August 2007

Erect or sprawling perennial, herb, to 0.6 m high. Fl. violet/purple, Dec or Jan to Apr. Grey sand, brown clay over granite, stony white soil over limestone. Coastal areas, roadsides, agricultural & pastoral areas.


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

IBRA Regions: Avon Wheatbelt, Carnarvon, Coolgardie, Esperance Plains, Jarrah Forest, Mallee, Murchison, Swan Coastal Plain.

IBRA Subregions: Avon Wheatbelt P1, Avon Wheatbelt P2, Eastern Goldfield, Eastern Murchison, Fitzgerald, Northern Jarrah Forest, Perth, Recherche, Western Mallee, Wooramel.

IMCRA Regions: Abrolhos Islands, Central West Coast, Leeuwin-Naturaliste.

Local Government Areas (LGAs): Canning, Carnarvon, Cockburn, Dundas, Esperance, Greater Geraldton, Harvey, Kalamunda, Kondinin, Lake Grace, Melville, Merredin, Perth, Ravensthorpe, Rockingham, South Perth, Wandering, Wiluna, Woodanilling.

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

Erect, herb. Stems terete, not spiny, hairy; pustules or glands absent. Leaves or phylloclades clearly present, compound, alternate, not continuous with stem, 15-50 mm long, glabrous, flat with flat margins; margins entire, leaflets 3, pinnately arranged, terminal leaflet present, stalked. Stipules present and persistent to older leaves, 7-12 mm long, without glands, ribless. Pedicel present, 2-2.5 mm long, hairy. Calyx 6-7 mm long, not accrescent, hairy, with simple hairs. Corolla 9-10 mm long, uniformly coloured, purple, auriculate (?) or not auriculate (?), keel 7-8 mm long, not beaked, glabrous. Stamens ten. Fruit stipitate, not constricted between the seeds, round in cross-section, hairy, with simple hairs. Flowers in January, February, March, April and December. Occurs in the Eremaean and South-West Botanical Province, in the Carnarvon, Murchison, Coolgardie, Avon Wheatbelt, Jarrah Forest, Mallee, Esperance and Swan Coastal Plain IBRA regions.