Commersonia borealis (E.Pritz.) C.F.Wilkins & Whitlock
Austral.Syst.Bot. 24:243 (2011)

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

Distribution

Beard’s Provinces: Eremaean Province, South-West Province.

IBRA Regions: Geraldton Sandplains, Swan Coastal Plain, Yalgoo.

IBRA Subregions: Edel, Geraldton Hills, Lesueur Sandplain, Perth.

IMCRA Regions: Central West Coast.

Local Government Areas (LGAs): Carnamah, Dandaragan, Gingin, Greater Geraldton, Irwin, Northampton, Shark Bay.

Scientific Description
Chris Hollister and Kevin Thiele, Tuesday 29 August 2017

Shrub. Stems hairy. Leaves 25-35 mm long, 7-20 mm wide, not lobed or tripartitely lobed, simply (once-)lobed; margins entire or crenate; indumentum present, with stellate hairs; stipules present but early deciduous (only visible on youngest leaves), 8-15 mm long. Perianth clearly of two whorls (calyx and corolla), the corolla obvious and prominent. Pedicel present, 3.5-6 mm long; indumentum present, with stellate hairs. Calyx white, 2.5-4 mm long, the lobes fused less than half their length, stellate hairs present. Corolla yellow, 2.5-4 mm long, glabrous. Stamens five, free and inserted at the base of the ovary; filaments present, 0.3-1 mm long; anthers 0.3-0.5 mm long. Staminodes present. Ovary hairs or scales present, stellate hairs present; styles several, free and separate, arising from the summit of the ovary, 0.3-1 mm long, with five style branches or lobes, mostly glabrous. Fruits dehiscent (capsules and follicles), length-width ratio more or less as long as wide, mericarps smooth, hairs or scales present, stellate hairs present; apex rounded; prickles present, abundantly covering the fruit; calyx persistent to mature fruit. Flowering time July, August, September, October or November. Distribution Botanical Province Eremaean or South-West, IBRA Bioregion Yalgoo, Geraldton Sandplains or Swan Coastal Plain.