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Service Notice

The Western Australian Herbarium’s collections management system, WAHerb, and DBCA’s flora taxonomic names application, WACensus, have been set to read-only mode since 1 October 2025. Recent taxonomic changes are not currently being reflected in Florabase, herbarium collections, or the census. Due to the rapidly approaching holiday season and associated agency and facility soft closures, along with the substantial work involved in data mapping, cleaning, and verification, the migration to the new collection management software is not expected to occur before 1 March 2026, when a further update will be provided. Please reach out to us if you have any questions or concerns.

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Tribonanthes australis Endl.
Southern Tiurndin

Reference
Nov.Stirp.Dec. 4:27 (1839)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

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

Grazyna Paczkowska, Descriptive Catalogue, 21 June 1994
Image

Scientific Description

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.

C. Hollister and K.R. Thiele, 18 January 2020

Distribution

IBRA Regions
Avon Wheatbelt, Esperance Plains, Geraldton Sandplains, Jarrah Forest, Mallee, Swan Coastal Plain, Warren.
IBRA Subregions
Dandaragan Plateau, Fitzgerald, Geraldton Hills, Lesueur Sandplain, Merredin, Northern Jarrah Forest, Perth, Southern Jarrah Forest, Warren, Western Mallee.
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, Harvey, Irwin, Kalamunda, Kent, Kojonup, Kwinana, Manjimup, Mingenew, Murray, Nannup, Plantagenet, Serpentine-Jarrahdale, Swan, Three Springs, Victoria Plains, Wanneroo, Waroona.