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The Western Australian Herbarium’s collections management system, WAHerb, and DBCA’s flora taxonomic names application, WACensus, have been set to read-only mode since 1 October 2025. Recent taxonomic changes are not currently being reflected in Florabase, herbarium collections, or the census. Due to the rapidly approaching holiday season and associated agency and facility soft closures, along with the substantial work involved in data mapping, cleaning, and verification, the migration to the new collection management software is not expected to occur before 1 March 2026, when a further update will be provided. Please reach out to us if you have any questions or concerns.

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Lasiopetalum biloculatum K.A.Sheph. & C.F.Wilkins

Reference
Nuytsia 32:127-130, Fig. 3 (2021)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Scientific Description

Shrub, with hairy stems. Leaves 18-55 mm long, 8-30 mm wide, not lobed; margins entire; hairy, with stellate hairswith scales absent, Sessile glands absent; stipules apparently absent, even from youngest leaves. Perianth of two whorls but the corolla reduced to small scales or tiny lobes at the base of the ovary. Pedicel present, 0.5-1 mm long; indumentum present, with stellate hairs present, with scales absent. Epicalyx (extra segments or 'bracteoles' immediately below the calyx) present, 4-5.4 mm long, the lobes free, indumentum present, stellate hairs presentwith scales absent, Sessile glands absent. Calyx pink, 4.5-5 mm long, the lobes fused less than half their length, Sessile glands absent, simple hairs (without tubercle bases) absent, stellate hairs present, tubercle-based simple hairs absent, gland-tipped hairs absent, scales absent, Terminal appendages absent, number of ribs absent. Corolla 0.5-0.8 mm long, glabrous. Indumentum (outside) Sessile glands absent. Stamens five, free and inserted at the base of the ovary; filaments present, 0.5-0.7 mm long; anthers 1.7-2.3 mm long, indumentum absent (anthers glabrous). Staminodes absent, appendages absent. Ovary hairs or scales present, simple hairs absent, stellate hairs present, gland-tipped hairs absent; style 1, with a lobed or capitate stigma, 3-3.6 mm long, with one style branches or lobes, hairy for most of length, wing absent. Flowering time July, August, September, October or November. Distribution Botanical Province South-West, IBRA Bioregion Geraldton Sandplains, Swan Coastal Plain and Avon Wheatbelt.

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

Distribution

IBRA Regions
Avon Wheatbelt, Geraldton Sandplains, Swan Coastal Plain.
IBRA Subregions
Dandaragan Plateau, Katanning, Lesueur Sandplain, Merredin.
Local Government Areas (LGAs)
Carnamah, Coorow, Dandaragan, Irwin, Three Springs, Wickepin.