Tribonanthes australis Endl.
Nov.Stirp.Dec. 1:27 (1839)

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

Brief Description
Grazyna Paczkowska, Tuesday 21 June 1994

Tuberous, perennial, herb, 0.15-0.4 m high. Fl. white, Aug to Nov. Black sand, peat, sandy clay. Seasonally-wet areas, swamps.

Distribution

Beard’s Provinces: South-West Province.

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

IBRA Subregions: Avon Wheatbelt P1, Avon Wheatbelt P2, Dandaragan Plateau, Fitzgerald, Geraldton Hills, Lesueur Sandplain, Northern Jarrah Forest, Perth, Southern Jarrah Forest, Warren.

IMCRA Regions: WA South Coast.

Local Government Areas (LGAs): Albany, Armadale, Augusta-Margaret River, Boyup Brook, Bridgetown-Greenbushes, Bunbury, Busselton, Canning, Capel, Carnamah, Coorow, Cranbrook, Dandaragan, Denmark, Gingin, Gnowangerup, Gosnells, Greater Geraldton, Harvey, Irwin, Kalamunda, Kojonup, Kwinana, Manjimup, Mingenew, Murray, Nannup, Plantagenet, Serpentine-Jarrahdale, Swan, Three Springs, Victoria Plains, Wandering, Wanneroo, Wongan-Ballidu.

Scientific Description
Chris Hollister and Kevin Thiele, Tuesday 29 August 2017

Leaves flat, 55-280 mm long, 1.2-2.5 mm wide; bristles or hairs on the leaf margin absent; hairs on the surface of the leaf present or absent (leaf surfaces glabrous). Scape present, hairy, 80-430 mm long. Inflorescence subtended by a bract 25-60 mm long, with several flowers or one flower; floral bracts 10-17 mm long; flowers 11-19 mm long. Perianth hairy, radially symmetrical, uniformly coloured, white to cream, with six more or less equal tepals, the inner segments 7-13 mm long. Stamens six, in one level; filaments 2-3.5 mm long; anther 2.3-5 mm long, with an appendage. Style 2.5-3.5 mm long. Flowers in August, September, October or November. Occurs in the Geraldton Sandplains, Swan Coastal Plain, Avon Wheatbelt, Jarrah Forest, Warren and Esperance IBRA bioregion(s), of the South-west Botanical Province.