Chorizema ulotropis J.M.Taylor & Crisp
Austral.Syst.Bot. 5:290-293,Fig.23 (1992)

Conservation Code: Priority Four
Naturalised Status: Native to Western Australia
Name Status: Current

Brief Description
Amanda Spooner, Thursday 28 August 2003

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.


Beard’s Provinces: South-West Province.

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.

Scientific Description
C. Hollister and K.R. Thiele, Friday 4 December 2020

Twining or climbing plants, shrub, spindly shrub (broom-like). Stems terete, 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; 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, 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).