Thomasia tremandroides Paust
Nuytsia 1:348 (1974)

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

Brief Description
Grazyna Paczkowska, Wednesday 2 October 1996

Erect or low spreading shrub, 0.1-0.6 m high. Fl. blue-purple-pink, Aug to Nov. Yellow sand, often over laterite. Sandplains.


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

IBRA Regions: Avon Wheatbelt, Geraldton Sandplains, Murchison.

IBRA Subregions: Avon Wheatbelt P1, Avon Wheatbelt P2, Geraldton Hills, Lesueur Sandplain, Western Murchison.

Local Government Areas (LGAs): Carnamah, Dalwallinu, Moora, Morawa, Mount Marshall, Mukinbudin, Murchison, Northampton, Perenjori, Wongan-Ballidu.

Scientific Description
Chris Hollister and Kevin Thiele, Wednesday 21 August 2019

Shrub. Stems hairy. Leaves 5-10 mm long, 3-7 mm wide, not lobed; margins entire or crenate; indumentum present, with stellate hairs; stipules present but early deciduous (only visible on youngest leaves), 2-5 mm long. Perianth of two whorls but the corolla reduced to small scales or tiny lobes at the base of the ovary. Pedicel present, 4-6 mm long; indumentum present, with stellate hairs, with gland-tipped hairs. Epicalyx (extra segments or 'bracteoles' immediately below the calyx) present, 3.5-6 mm long, the lobes free, indumentum present, stellate hairs present. Calyx pink, blue or purple, 5.5-9 mm long, the lobes fused less than half their length, stellate hairs present, number of ribs present, one. Corolla 0.9-2.1 mm long, glabrous. Stamens five, free and inserted at the base of the ovary; filaments present, 0.2-0.5 mm long; anthers 2.8-3.2 mm long, indumentum absent (anthers glabrous). Ovary hairs or scales present, stellate hairs present; style 1, with a lobed or capitate stigma, 2.4-3.2 mm long, with one style branches or lobes, mostly glabrous. Fruits terminal awns or spines absent (?). Flowering time October or November. Distribution Botanical Province South-West, IBRA Bioregion Warren.