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Mirbelia viminalis (Benth.) C.A.Gardner

Reference
Enum.Pl.Austral.Occ. 57 (1930)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Erect to spreading, much-branched, spiny shrub, 0.4-2 m high. Fl. yellow, Mar to Oct. Sand, sandstone, stony loam. Rocky outcrops, screes, plateaus, hills.

Grazyna Paczkowska, Descriptive Catalogue, 25 July 1996
Image

Scientific Description

Prostrate,spreading or scrambling, shrub, spindly shrub (broom-like). Stems terete, spiny at least in part, glabrous; pustules or glands absent. Leaves or phylloclades clearly present, alternate, continuous with stem, 15-45 mm long, 1-1.5 mm wide, glabrous; margins entire; tubercles absent; pustules or glands absent. Stipules present but early deciduous ( only visible on youngest leaves ). Pedicel present, 3-4 mm long, hairy. Bracteoles present and persistent. Calyx 4-6 mm long, not accrescent, hairy, with simple hairs, ribless; pustules or glands absent. Corolla 8-11 mm long, uniformly coloured, yellow; claws absent; standard 6-9 mm long, glabrous, not auriculate, wings 5.6-8.5 mm long, not auriculate, keel 5.6-7.3 mm long, not beaked, not auriculate, glabrous. Stamens ten; anthers 0.6-0.7 mm long, at two different levels (filaments alternately long and short); filaments free (or united at the very base), 3-5 mm long. Ovary stipitate, glabrous; style 3.6-5 mm long, glabrous, not bearded, terete. Fruit dehiscent (a pod or follicle), stipitate, not constricted between the seeds, round in cross-section, not beaked. Flowers in March, April, May, June, July, August, September and October. Occurs in the Northern and Eremaean Botanical Province, in the Great Sandy Desert, Pilbara, Carnarvon, Central Ranges, Northern Kimberley, Victoria Bonaparte, Central Kimberley, Ord-Victorian-Plain, Tanami and Dampierland IBRA regions.

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

Distribution

IBRA Regions
Carnarvon, Central Kimberley, Central Ranges, Dampierland, Great Sandy Desert, Little Sandy Desert, Northern Kimberley, Ord Victoria Plain, Pilbara, Tanami, Victoria Bonaparte.
IBRA Subregions
Berkeley, Cape Range, Chichester, Fortescue, Hamersley, Keep, Mackay, Mann-Musgrave Block, McLarty, Mitchell, Pentecost, Pindanland, Purnululu, South Kimberley Interzone, Tanami Desert, Trainor.
IMCRA Regions
Cambridge-Bonaparte.
Local Government Areas (LGAs)
Ashburton, Broome, Derby-West Kimberley, East Pilbara, Exmouth, Halls Creek, Ngaanyatjarraku, Wiluna, Wyndham-East Kimberley.