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Corchorus incanus Halford subsp. incanus

Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status

Shrub (sometimes viscid), to 1 m high. Fl. yellow, Feb or Apr to Sep. Red sand, sandy loam, rarely clayey sand, limestone. On sandhills and plains, along watercourses.

Amanda Spooner, Descriptive Catalogue, 14 February 2006

Scientific Description

Herb or shrub, with hairy stems. Leaves 30-95 mm long, 10-55 mm wide, not lobed; margins serrate; hairy, with stellate hairswith scales absent, Sessile glands absent; stipules present but early deciduous (only visible on youngest leaves). Perianth clearly of two whorls (calyx and corolla), the corolla obvious and prominent. Pedicel present, 7-8 mm long; indumentum present, with stellate hairs present, with scales absent. Epicalyx (extra segments or 'bracteoles' immediately below the calyx) absent. Calyx cream or white, 10-14 mm long, the lobes free, Sessile glands absent, stellate hairs present, scales absent, Terminal appendages absent, number of ribs absent. Corolla yellow, 6-8 mm long, glabrous. Indumentum (outside) Sessile glands absent. Stamens many, free and inserted at the base of the ovary; filaments present, 3-5 mm long; anthers 0.5-0.7 mm long, indumentum absent (anthers glabrous). Staminodes absent, appendages absent. Ovary hairs or scales present, simple hairs absent, stellate hairs present; style 1, with a lobed or capitate stigma, 4.5-4.7 mm long, with one style branches or lobes, mostly glabrous, wing absent. Fruits dehiscent (capsules and follicles), length-width ratio at least 1.5 times as long as wide, hairs and scales absent, Sessile glands absent, tubercle-based simple hairs absent, scales absent; apex rounded; prickles absent (except perhaps a terminal awn); terminal awns or spines absent; calyx deciduous before maturity, not accrescent; carpels 3; seeds per loculus ≥5. Flowering time February, April, May, June, July, August or September. Distribution Botanical Province Eremaean, IBRA Bioregion Pilbara, Carnarvon, Little Sandy Desert and Great Victorian Desert.

C. Hollister and K.R. Thiele, 11 August 2023


IBRA Regions
Carnarvon, Dampierland, Great Sandy Desert, Little Sandy Desert, Pilbara.
IBRA Subregions
Cape Range, Chichester, McLarty, Pindanland, Roebourne, Rudall.
Local Government Areas (LGAs)
Ashburton, Broome, East Pilbara, Karratha, Port Hedland.