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Indigofera linnaei Ali
Birdsville Indigo

Reference
Bot.Not. 111:549 (1958)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Prostrate to ascending, woody perennial, herb, 0.05-0.5 m high. Fl. red/red-orange, Jan to May. Sandy soils. Sandstone & limestone ridges, along rives & creeks, rocky hillsides.

Grazyna Paczkowska, Descriptive Catalogue, 20 June 1996
Image

Scientific Description

Twining or climbing plants, herb. Stems terete, not spiny, hairy; pustules or glands absent. Leaves or phylloclades clearly present, compound, alternate, not continuous with stem, 10-35 mm long, hairy, with simple hairs, flat with flat margins; margins entire; tubercles absent, leaflets 5-9, pinnately arranged, terminal leaflet present, stalked; pustules or glands absent. Stipules present and persistent to older leaves, 4-4.5 mm long, without glands, ribless. Pedicel present, 1.5 mm long, hairy. Bracteoles present but early deciduous. Calyx 3-4.5 mm long, not accrescent, hairy, with simple hairs, ribless; pustules or glands absent. Corolla 3-4 mm long, multicoloured, red, mostly yellow or red, with some yellow or red spots, streaks or blotches; claws absent; standard 6-6.5 mm long, glabrous, not auriculate, wings 5-6 mm long, not auriculate, keel 6.5-7.5 mm long, not beaked, not auriculate, glabrous. Stamens ten; filaments united in an open sheath with one free stamen. Ovary hairy or glandular; style 3-4 mm long, hairy or glandular towards the base, bearded (with a tuft of hairs at apex), terete. Fruit dehiscent (a pod or follicle), 7.2 mm long, 2.6 mm wide, sessile or subsessile, not constricted between the seeds, round in cross-section, hairy, with simple hairs, not beaked. Flowers in January, February, March, April and May. Occurs in the Northern and Eremaean Botanical Province, in the Great Sandy Desert, Pilbara, Carnarvon, Gascoyne, Little Sandy Desert, Central Ranges, Victoria Bonaparte, Central Kimberley, Ord-Victorian-Plain and Dampierland IBRA regions.

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

Distribution

IBRA Regions
Carnarvon, Central Kimberley, Central Ranges, Dampierland, Gascoyne, Great Sandy Desert, Little Sandy Desert, Northern Kimberley, Ord Victoria Plain, Pilbara, Tanami, Victoria Bonaparte.
IBRA Subregions
Augustus, Cape Range, Carnegie, Chichester, Fitzroy Trough, Fortescue, Hamersley, Hart, Keep, Mackay, Mann-Musgrave Block, McLarty, Mitchell, Mount Eliza, Pentecost, Pindanland, Purnululu, Roebourne, Rudall, South Kimberley Interzone, Tanami Desert, Trainor, Wooramel.
IMCRA Regions
Canning, Ningaloo, Pilbara (nearshore).
Local Government Areas (LGAs)
Ashburton, Broome, Carnarvon, Derby-West Kimberley, East Pilbara, Exmouth, Halls Creek, Karratha, Meekatharra, Ngaanyatjarraku, Port Hedland, Upper Gascoyne, Wiluna, Wyndham-East Kimberley.