Gastrolobium tergiversum G.Chandler & Crisp
Austral.Syst.Bot. 15:640-641 (2002)

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

Brief Description
Amanda Spooner, Thursday 9 October 2003

Slender to open, erect shrub, to 2 m high. Fl. orange, Oct to Dec or Jan to Feb. Rocky grey sandy loam over granite. Base of rock outcrops.


Beard’s Provinces: South-West Province.

IBRA Regions: Mallee.

IBRA Subregions: Eastern Mallee.

Local Government Areas (LGAs): Esperance.

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

Erect, shrub, spindly shrub (broom-like). Stems terete, not spiny, hairy; pustules or glands absent. Leaves or phylloclades clearly present, simple, opposite or whorled, not continuous with stem, 15-30 mm long, 2.5-10 mm wide, hairy, with simple hairs, flat with flat margins or flat with incurved margins (conduplicate); margins entire or lobed; tubercles absent; pustules or glands absent. Stipules present and persistent to older leaves. Pedicel present, 3-5 mm long, hairy. Bracteoles present but early deciduous. Calyx 8-9.2 mm long, not accrescent, hairy, with simple hairs, ribless; pustules or glands absent. Corolla 12.5-15 mm long, uniformly coloured, orange; claws present; standard 11-13.5 mm long, glabrous, auriculate, wings 10-12 mm long, auriculate, keel 9.5-11.5 mm long, not beaked, auriculate, glabrous. Stamens ten; anthers 0.8-1 mm long, at two different levels (filaments alternately long and short); filaments free (or united at the very base), 5.2-7 mm long. Ovary sessile or subsessile, hairy or glandular; style 6-7 mm long, hairy or glandular towards the base, not bearded, terete. Fruit dehiscent (a pod or follicle), stipitate, 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 Mallee IBRA regions. Conservation Code Priority Two (P2).