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Chorizema rhombeum R.Br.

Reference
W.T.Aiton, Hort.Kew. Ed.2,3:9 (1811)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Prostrate to ascending or twining shrub, 0.1-0.5 m high. Fl. orange-pink/red & yellow, Aug to Dec (mainly 9-10). Grey or white sand, sandy clay, sandy loam, gravel, laterite. Gentle slopes, river banks, exposed coastal sites.

Grazyna Paczkowska, Descriptive Catalogue, 29 May 1996
Image

Scientific Description

Prostrate,spreading or scrambling or twining or climbing plants, shrub, spindly shrub (broom-like). Stems terete, not spiny, hairy; pustules or glands absent. Leaves or phylloclades clearly present, simple, alternate, not continuous with stem, 7-25 mm long, 6-8 mm wide, glabrous, flat with flat margins; margins entire; tubercles absent; pustules or glands absent. Pedicel present, 3-3.4 mm long, hairy. Bracteoles present and persistent or present but early deciduous, 1-1.8 mm long, hairy, not striate. Calyx 9-10 mm long, not accrescent, hairy, with simple hairs, ribless; pustules or glands absent. Corolla 11-15 mm long, multicoloured, mostly yellow, pink, red or orange, with some yellow, pink, red or orange spots, streaks or blotches; claws present; standard 10-14 mm long, glabrous, not auriculate, wings 11-12 mm long, not auriculate, keel 9.5-11 mm long, not beaked, not auriculate, hairy at least in part. 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), 4.6-6.8 mm long. Ovary stipitate, hairy or glandular; style 9.2-10 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, glabrous, not beaked. Flowers in August, September, October, November and December. Occurs in the South-West Botanical Province, in the Jarrah Forest, Warren, Esperance and Swan Coastal Plain IBRA regions.

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

Distribution

IBRA Regions
Esperance Plains, Jarrah Forest, Swan Coastal Plain, Warren.
IBRA Subregions
Fitzgerald, Northern Jarrah Forest, Perth, Recherche, Southern Jarrah Forest, Warren.
IMCRA Regions
WA South Coast.
Local Government Areas (LGAs)
Albany, Armadale, Augusta Margaret River, Boddington, Busselton, Capel, Collie, Cranbrook, Dardanup, Denmark, Donnybrook-Balingup, Esperance, Gnowangerup, Harvey, Manjimup, Murray, Nannup, Plantagenet, Serpentine-Jarrahdale, Waroona, West Arthur, Williams.