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Indigofera decipiens Peter G.Wilson & Rowe

Reference
Nuytsia 25:263-265, Fig. 5 (2015)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Spreading shrub, to 0.7 m high. Fl. purple, Aug. Skeletal red gritty soils over massive rock. Summit of rolling hill.

Amanda Spooner, Descriptive Catalogue, 1 October 1997

Scientific Description

Prostrate,spreading or scrambling, shrub, spindly shrub (broom-like). Stems terete, not spiny, hairy; pustules or glands absent. Leaves or phylloclades clearly present, compound, alternate, not continuous with stem, 20-35 mm long, hairy, with simple hairs, flat with flat margins; margins entire; tubercles absent, leaflets 7, pinnately arranged, terminal leaflet present, stalked; pustules or glands absent. Stipules present and persistent to older leaves, 3-4 mm long, without glands, ribless. Pedicel present, 0.5-1 mm long, hairy. Bracteoles present but early deciduous. Calyx 2.5-3.7 mm long, not accrescent, hairy, with simple hairs, ribless; pustules or glands absent. Corolla 7-7.6 mm long, uniformly coloured, purple; claws absent; standard 7 mm long, glabrous, not auriculate, wings 6-6.2 mm long, not auriculate, keel 6-7 mm long, not beaked, not auriculate, glabrous. Stamens ten; anthers 0.5-0.7 mm long, at two different levels (filaments alternately long and short); filaments united in an open sheath with one free stamen, 4-5 mm long. Ovary stipitate, hairy or glandular; style 5.5-7 mm long, hairy or glandular towards the base, bearded (with a tuft of hairs at apex), terete. Fruit dehiscent (a pod or follicle), 35-40 mm long, 3.5-4 mm wide, sessile or subsessile, not constricted between the seeds, round in cross-section, hairy, with simple hairs, not beaked. Flowers in August. Occurs in the Eremaean Botanical Province, in the Gascoyne IBRA regions.

C. Hollister and K.R. Thiele, 24 October 2023

Distribution

IBRA Regions
Carnarvon, Gascoyne, Murchison, Pilbara.
IBRA Subregions
Ashburton, Augustus, Chichester, Hamersley, Western Murchison, Wooramel.
Local Government Areas (LGAs)
Ashburton, Carnarvon, Karratha, Meekatharra, Upper Gascoyne.