Thomasia grandiflora Lindl. Large Flowered Thomasia
Sketch Veg.Swan R. 18 (1839)

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

Brief Description
Grazyna Paczkowska, Wednesday 2 October 1996

Multi-stemmed shrub, 0.15-1 m high. Fl. pink-purple, Jul to Nov. Usually lateritic gravelly soils.

Distribution

Beard’s Provinces: South-West Province.

IBRA Regions: Avon Wheatbelt, Esperance Plains, Geraldton Sandplains, Jarrah Forest, Mallee, Swan Coastal Plain, Warren.

IBRA Subregions: Avon Wheatbelt P2, Dandaragan Plateau, Eastern Mallee, Fitzgerald, Geraldton Hills, Lesueur Sandplain, Northern Jarrah Forest, Perth, Southern Jarrah Forest, Warren, Western Mallee.

IMCRA Regions: Central West Coast.

Local Government Areas (LGAs): Albany, Armadale, Augusta-Margaret River, Beverley, Boyup Brook, Bridgetown-Greenbushes, Bunbury, Busselton, Canning, Capel, Chapman Valley, Chittering, Collie, Coorow, Cranbrook, Dandaragan, Dardanup, Donnybrook-Balingup, Esperance, Gnowangerup, Gosnells, Greater Geraldton, Harvey, Irwin, Jerramungup, Kalamunda, Kent, Manjimup, Moora, Mundaring, Nannup, Northampton, Ravensthorpe, Serpentine-Jarrahdale, Swan, Three Springs, Toodyay, Victoria Plains, Wandering, Waroona, West Arthur, York.

Scientific Description
Chris Hollister and Kevin Thiele, Saturday 12 November 2016

Shrub. Stems hairy. Leaves 20-48 mm long, 4-25 mm wide, not lobed; margins entire or sinuate; indumentum present, with stellate hairs; stipules present but early deciduous (only visible on youngest leaves), 10-15 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. Epicalyx (extra segments or 'bracteoles' immediately below the calyx) present, 6.2-9 mm long, the lobes free, indumentum present, stellate hairs present. Calyx pink or purple, 8-11 mm long, the lobes fused less than half their length, stellate hairs present, number of ribs present, one. Corolla 0.5-1 mm long, glabrous. Stamens five, free and inserted at the base of the ovary; filaments present, 2-3 mm long; anthers 5-5.2 mm long. Staminodes present. Ovary hairs or scales present, stellate hairs present; style 1, with a lobed or capitate stigma, 3-4 mm long, with one style branches or lobes, mostly glabrous. Flowering time July, August, September, October or November. Distribution Botanical Province South-West, IBRA Bioregion Geraldton Sandplains, Swan Coastal Plain, Avon Wheatbelt, Jarrah Forest, Mallee, Warren or Esperance.