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Chorizema ulotropis J.M.Taylor & Crisp

Reference
Austral.Syst.Bot. 5:290-293,Fig.23 (1992)
Conservation Code
Priority Four
Naturalised Status
Native to Western Australia
Name Status
Current

Sprawling, open, semi-prostrate shrub, to 0.45 m high. Fl. orange-yellow, Jul to Sep. Moist to dry soils, white sand with gravel, laterite, granite. Outcrops, winter damp to dry areas, flats.

Amanda Spooner, Descriptive Catalogue, 28 August 2003

Scientific Description

Twining or climbing plants, shrub, spindly shrub (broom-like). Stems terete, not spiny, glabrous; pustules or glands absent. Leaves or phylloclades clearly present, simple, alternate, not continuous with stem, 10-20 mm long, 1-1.5 mm wide, glabrous, flat with recurved margins; margins entire; tubercles absent; pustules or glands absent. Pedicel present, 2.5-3 mm long, hairy. Bracteoles present and persistent or present but early deciduous. Calyx 7-9 mm long, not accrescent, hairy, with simple hairs, ribless; pustules or glands absent. Corolla 9-12 mm long, multicoloured, mostly yellow or orange, with some yellow or orange spots, streaks or blotches; claws present; standard 9-12 mm long, glabrous, not auriculate, wings 8.5-10 mm long, not auriculate, keel 9.5-10 mm long, beaked, not auriculate, glabrous. Stamens ten; anthers 0.3-0.5 mm long, at two different levels (filaments alternately long and short); filaments free (or united at the very base), 3.2-4.2 mm long. Ovary hairy or glandular; style 3.7-4 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, not beaked. Flowers in July, August and September. Occurs in the South-West Botanical Province, in the Jarrah Forest, Mallee and Esperance IBRA regions. Conservation Code Priority Four (P4).

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

Distribution

IBRA Regions
Esperance Plains, Jarrah Forest, Mallee.
IBRA Subregions
Fitzgerald, Northern Jarrah Forest, Western Mallee.
Local Government Areas (LGAs)
Armadale, Gnowangerup, Jerramungup, Murray, Ravensthorpe, Toodyay, Wandering, Williams.