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Swainsona phacoides Benth.
Dwarf Swainsona

Reference
T.Mitch., J.Exped.Trop.Australia 363 (1848)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Prostrate or ascending perennial or annual (ephemeral), herb, to 0.3 m high. Fl. red-purple, Jul to Sep. Red loam, rocky loam. Clay depressions, dunes.

Grazyna Paczkowska, Descriptive Catalogue, 5 August 1996

Scientific Description

Prostrate,spreading or scrambling, herb. Stems terete, not spiny, hairy; pustules or glands absent. Leaves or phylloclades clearly present, compound, alternate, continuous with stem, 35-65 mm long, hairy, with simple hairs, flat with flat margins; margins entire; tubercles absent, leaflets 7(-9), pinnately arranged, terminal leaflet present, stalked; pustules or glands absent. Stipules present and persistent to older leaves, 5.5-7.5 mm long, without glands, ribless. Pedicel present, 2-4 mm long, hairy. Bracteoles present and persistent, 1.5-2 mm long, hairy, not striate. Calyx 9-12.5 mm long, not accrescent, hairy, with simple hairs, ribless; pustules or glands absent. Corolla 15-21 mm long, multicoloured, mostly red or purple, with some red or purple spots, streaks or blotches; claws present; standard 11.5-20 mm long, glabrous, not auriculate, wings 9.5-15 mm long, auriculate, keel 13.5-21 mm long, not beaked, auriculate, glabrous. Stamens ten; anthers 2 mm long, at two different levels (filaments alternately long and short); filaments united in an open sheath with one free stamen, 8-14 mm long. Ovary stipitate, hairy or glandular; style 13-19 mm long, hairy or glandular towards the base, bearded (with a tuft of hairs at apex), flattened at apex. Fruit dehiscent (a pod or follicle), 20-32 mm long, 5-8 mm wide, stipitate, not constricted between the seeds, round in cross-section, hairy, with simple hairs. Flowers in July, August and September. Occurs in the Eremaean Botanical Province, in the Great Sandy Desert, Gascoyne, Central Ranges and Murchison IBRA regions.

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

Distribution

IBRA Regions
Central Ranges, Gascoyne, Murchison.
IBRA Subregions
Carnegie, Eastern Murchison, Mann-Musgrave Block.
Local Government Areas (LGAs)
Ngaanyatjarraku, Wiluna.