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Hibiscus austrinus var. occidentalis Juswara & Craven

Reference
Blumea 50(2):394,Fig.2 (2005)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Shrub (or subshrub), to 0.6 m high. Black clay, heavy river clay. Flood plains, river banks.

Amanda Spooner, Descriptive Catalogue, 16 March 2007

Scientific Description

Shrub, with hairy stems. Leaves 50-110 mm long, 20-70 mm wide, not lobed or tripartitely lobed, simply (once-)lobed; margins dentate; hairy, with stellate hairswith scales absent, Sessile glands absent; stipules present and persistent to older leaves. Perianth clearly of two whorls (calyx and corolla), the corolla obvious and prominent. Pedicel present, 5-10 mm long; indumentum present, with stellate hairs present, with scales absent. Epicalyx (extra segments or 'bracteoles' immediately below the calyx) present, 12-15 mm long, the lobes free, indumentum present, stellate hairs presentwith scales absent, Sessile glands absent. Calyx green, 20-25 mm long, the lobes fused less than half their length, Sessile glands absent, simple hairs (without tubercle bases) present, stellate hairs present, tubercle-based simple hairs absent, gland-tipped hairs absent, scales absent, Terminal appendages absent, number of ribs absent. Corolla yellow, 35-50 mm long, hairs or scales present, simple hairs (without tubercle bases) present, stellate hairs present, tubercle-based simple hairs absent, gland-tipped hairs absent, scales absent. Indumentum (outside) Sessile glands absent. Stamens many, united and arising from a staminal tube around the style; filaments present, 0.8 mm long; anthers 1 mm long, indumentum absent (anthers glabrous). Staminodes absent, appendages absent. Ovary hairs or scales present, simple hairs present, stellate hairs absent, gland-tipped hairs absent; style 1, 16 mm long, with five or numerous 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) absent, stellate hairs present, Sessile glands absent, tubercle-based simple hairs absent, gland-tipped hairs absent, scales absent; apex rounded; prickles absent (except perhaps a terminal awn); terminal awns or spines present; calyx persistent to mature fruit; seeds per loculus 2-4. Flowering time June or August. Distribution Botanical Province Northern, IBRA Bioregion Central Kimberley and Dampierland.

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

Distribution

IBRA Regions
Central Kimberley, Dampierland.
IBRA Subregions
Fitzroy Trough, Mount Eliza, Pentecost.
Local Government Areas (LGAs)
Derby-West Kimberley.