Thomasia rugosa Turcz. Wrinkled Leaf Thomasia
Bull.Soc.Imp.Naturalistes Moscou 19 (2):501 (1846)

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

Brief Description
Grazyna Paczkowska, Wednesday 2 October 1996

Shrub, 0.6-1 m high. Fl. pink-blue-purple, Aug to Dec. Laterite, clay, sandy loam.

Distribution

Beard’s Provinces: South-West Province.

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

IBRA Subregions: Avon Wheatbelt P1, Avon Wheatbelt P2, Fitzgerald, Northern Jarrah Forest, Recherche, Western Mallee.

Local Government Areas (LGAs): Corrigin, Gnowangerup, Jerramungup, Kellerberrin, Kent, Kondinin, Lake Grace, Merredin, Narembeen, Ravensthorpe, West Arthur, Westonia, Wongan-Ballidu.

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

Shrub. Stems hairy or scaly. Leaves 12-40 mm long, 8-30 mm wide, not lobed; margins serrate; indumentum present, with stellate hairs; stipules present but early deciduous (only visible on youngest leaves), 5-9 mm long. Perianth of two whorls but the corolla reduced to small scales or tiny lobes at the base of the ovary. Pedicel present, 3-10 mm long; indumentum present, with stellate hairs. Epicalyx (extra segments or 'bracteoles' immediately below the calyx) present, 5-6 mm long, the lobes free, indumentum present, stellate hairs present. Calyx pink, blue or purple, NaN (?) mm long, the lobes fused half or more of their length or fused less than half their length, stellate hairs present, number of ribs present, one. Corolla 0.2-0.7 mm long, glabrous. Stamens five, free and inserted at the base of the ovary; filaments present, 2.5-3 mm long; anthers 2.8-3.5 mm long, indumentum absent (anthers glabrous). Ovary hairs or scales present, stellate hairs present; style 1, with a lobed or capitate stigma, 2.5-4.5 mm long, with one style branches or lobes, mostly glabrous. Flowering time August, September, October, November or December. Distribution Botanical Province South-West, IBRA Bioregion Avon Wheatbelt, Jarrah Forest, Mallee or Esperance.