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Service Notice

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.

The notice period started at 9:45 am on Friday, 12 December 2025 +08:00 and will end at 12:00 pm on Monday, 2 March 2026 +08:00.

Thomasia pygmaea (Turcz.) Benth.
Tiny Thomasia

Reference
Fl.Austral. 1:257 (1863)
Conservation Code
Priority Three
Naturalised Status
Native to Western Australia
Name Status
Current

Low shrub, 0.05-0.3 m high. Fl. blue-purple-pink, Aug to Oct. Stony sandy loam, clayey sand. Marine plains.

Grazyna Paczkowska, Descriptive Catalogue, 2 October 1996

Scientific Description

Shrub, with glabrous or scaly stems. Leaves 7-10 mm long, 5-10 mm wide, not lobed; margins entire; hairywith scales scales, Sessile glands absent; stipules present but early deciduous (only visible on youngest leaves). Perianth of two whorls but the corolla reduced to small scales or tiny lobes at the base of the ovary. Pedicel present, 8-9 mm long; indumentum present, with stellate hairs absent, with gland tipped hairs absent, with scales scales. Epicalyx (extra segments or 'bracteoles' immediately below the calyx) present, 1.5-2 mm long, the lobes free, indumentum presentwith scales scales, Sessile glands absent. Calyx pink, blue or purple, 7-10 mm long, the lobes fused less than half their length, Sessile glands absent, simple hairs (without tubercle bases) absent, stellate hairs absent, tubercle-based simple hairs absent, gland-tipped hairs absent, scales scales present, Terminal appendages absent, number of ribs present, one. Corolla glabrous. Stamens five, free and inserted at the base of the ovary; filaments present, 1.8-2 mm long; anthers 1.5-1.8 mm long, indumentum absent (anthers glabrous). Staminodes absent, appendages absent. Ovary hairs or scales present, simple hairs absent, stellate hairs absent, gland-tipped hairs absent; style 1, with a lobed or capitate stigma, 1-2 mm long, with one style branches or lobes, mostly glabrous, wing present. Flowering time August, September or October. Distribution Botanical Province South-West, IBRA Bioregion Mallee and Esperance. Conservation Code Priority Three (P3).

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

Distribution

IBRA Regions
Esperance Plains, Mallee.
IBRA Subregions
Fitzgerald, Recherche, Western Mallee.
Local Government Areas (LGAs)
Albany, Esperance, Gnowangerup, Jerramungup, Ravensthorpe.