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Commersonia corniculata (Sm.) K.A.Sheph. & C.F.Wilkins

Reference
Nuytsia 29:67 (2018)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Scientific Description

Shrub, with hairy stems. Leaves 15-70 mm long, 7-45 mm wide, tripartitely lobed or irregularly lobed, simply (once-)lobed; margins crenate or sinuate; hairy, with Simple hairs (without tubercle bases), with stellate hairswith scales absent, Sessile glands absent; stipules present but early deciduous (only visible on youngest leaves), 10-30 mm long. Perianth clearly of two whorls (calyx and corolla), the corolla obvious and prominent. Pedicel present, 5.5-6 mm long; indumentum present, with stellate hairs present, with scales absent. Epicalyx (extra segments or 'bracteoles' immediately below the calyx) absent. Calyx cream, 4-7 mm long, the lobes fused less than half their length, Sessile glands absent, stellate hairs present, scales absent, Terminal appendages absent, number of ribs absent. Corolla pink, 4-7 mm long, glabrous. Indumentum (outside) Sessile glands absent. Stamens five, free and inserted at the base of the ovary; filaments present, 0.5-0.6 mm long; anthers 0.6-0.9 mm long, indumentum absent (anthers glabrous). Staminodes present, appendages absent. Ovary hairs or scales present, simple hairs absent, stellate hairs present, gland-tipped hairs absent; styles several, free and separate, arising from the summit of the ovary, 0.5-0.8 mm long, with five style branches or lobes, mostly glabrous, wing absent. Fruits dehiscent (capsules and follicles), length-width ratio more or less as long as wide, hairs or scales present, simple hairs (without tubercle bases) present, stellate hairs present, Sessile glands absent, tubercle-based simple hairs absent, gland-tipped hairs absent, scales absent; apex rounded; prickles present, abundantly covering the fruit; terminal awns or spines present; calyx persistent to mature fruit, not accrescent. Flowering time August, September, October, November or December. Distribution Botanical Province South-West, IBRA Bioregion Swan Coastal Plain, Jarrah Forest, Warren and Esperance.

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

Distribution

IBRA Regions
Avon Wheatbelt, Esperance Plains, Jarrah Forest, Swan Coastal Plain, Warren.
IBRA Subregions
Katanning, Northern Jarrah Forest, Perth, Recherche, Southern Jarrah Forest, Warren.
IMCRA Regions
Leeuwin-Naturaliste, WA South Coast.
Local Government Areas (LGAs)
Albany, Busselton, Canning, Cranbrook, Denmark, Esperance, Gosnells, Kalamunda, Manjimup, Mundaring, Murray, Nannup, Pingelly, Swan, Wandering.