Bossiaea arcuata J.H.Ross
Muelleria 23:75-77, Fig. 23 (2006)

Conservation Code: Priority One
Naturalised Status: Native to Western Australia
Name Status: Current

Brief Description
Amanda Spooner, Tuesday 20 November 2007

Erect, divaricately branched superficially leafless shrub, to 1.5 m high. Fl. yellow&red, Mar to Apr or Sep to Oct. Deep white sand. Perimeter of salt lakes.


Beard’s Provinces: Eremaean Province.

IBRA Regions: Coolgardie.

IBRA Subregions: Eastern Goldfield.

Local Government Areas (LGAs): Dundas.

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

Erect, shrub, spindly shrub (broom-like). Stems terete, spiny at least in part, glabrous; pustules or glands absent. Leaves or phylloclades clearly present, simple, alternate, not continuous with stem, 3.5-5.5 mm long, 0.8-1 mm wide, glabrous, flat with flat margins; margins entire; tubercles absent; pustules or glands absent. Stipules present and persistent to older leaves. Pedicel present, 5.5-8 mm long, glabrous. Calyx 5-6.5 mm long, not accrescent, glabrous; pustules or glands absent. Corolla 10-12 mm long, multicoloured, mostly yellow or red, with some yellow or red spots, streaks or blotches; claws present; standard 8-11 mm long, glabrous, not auriculate, wings 7-11 mm long, not auriculate, keel 8-10 mm long, not auriculate, glabrous. Stamens ten; anthers 0.4-0.5 mm long, at two different levels (filaments alternately long and short); filaments united in an open sheath, 7-11 mm long. Ovary stipitate, hairy or glandular; style 10-12 mm long, hairy or glandular towards the base, not bearded, terete. Fruit dehiscent (a pod or follicle), 20-35 mm long, 3.5-5 mm wide, stipitate, not constricted between the seeds, flat or compressed, glabrous, not beaked. Flowers in March, April, September and October. Occurs in the Eremaean Botanical Province, in the Coolgardie IBRA regions. Conservation Code Priority One (P1).