Thomasia angustifolia Steud. Narrow Leaved Thomasia
Lehm., Pl.Preiss. 1:232 (1845)

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

Brief Description
Grazyna Paczkowska, Wednesday 2 October 1996

Erect or sprawling shrub, 0.1-0.7(-1.5) m high. Fl. pink-blue-purple, Aug to Nov. Sandy & loamy, often damp soils. Granite hills & outcrops, near creeks, sandplains.


Beard’s Provinces: South-West Province.

IBRA Regions: Avon Wheatbelt, Esperance Plains, Jarrah Forest, Mallee.

IBRA Subregions: Avon Wheatbelt P2, Eastern Mallee, Fitzgerald, Recherche, Southern Jarrah Forest, Western Mallee.

IMCRA Regions: WA South Coast.

Local Government Areas (LGAs): Albany, Broomehill-Tambellup, Cranbrook, Esperance, Gnowangerup, Jerramungup, Kojonup, Kulin, Lake Grace, Manjimup, Plantagenet, Ravensthorpe.

Scientific Description
C. Hollister and K.R. Thiele, Wednesday 15 January 2020

Shrub. Stems hairy. Leaves 8-25 mm long, 2-6 mm wide, not lobed; margins entire; indumentum present, with stellate hairs; stipules present but early deciduous (only visible on youngest leaves), 5-6 mm long. Perianth of two whorls but the corolla reduced to small scales or tiny lobes at the base of the ovary. Pedicel present, 4-6.5 mm long; indumentum present, with stellate hairs. Epicalyx (extra segments or 'bracteoles' immediately below the calyx) present, 5-5.8 mm long, the lobes free, indumentum present, stellate hairs present. Calyx pink or purple, 3.5-7 mm long, the lobes fused less than half their length, stellate hairs present, Terminal appendages absent, number of ribs present, one. Corolla 0.7-2 mm long, glabrous. Stamens five, free and inserted at the base of the ovary; filaments present, 1-2 mm long; anthers 1.6-2.2 mm long, indumentum absent (anthers glabrous). Ovary hairs or scales present, stellate hairs present; style 1, with a lobed or capitate stigma, 0.8-1.5 mm long, with one style branches or lobes, mostly glabrous. Flowering time August, September, October or November. Distribution Botanical Province South-West, IBRA Bioregion Avon Wheatbelt, Jarrah Forest, Mallee or Esperance.