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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.

The notice period started at 9:45 am on Friday, 12 December 2025 +08:00 and will end at 12:00 pm on Monday, 2 March 2026 +08:00.

Tribonanthes violacea Endl.
Violet Tiurndin

Reference
Lehm., Pl.Preiss. [J.G.C.Lehmann] 2:28 (1846)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Tuberous, perennial, herb, 0.05-0.2 m high. Fl. white-purple, Jul to Oct. White, grey or yellow sand, peat, clay loam, granite. Seasonally-wet locations, granite outcrops.

Grazyna Paczkowska, Descriptive Catalogue, 21 June 1994
Image

Scientific Description

Leaves flat, 60-185 mm long, 0.6-1.2 mm wide; bristles or hairs on the leaf margin absent; hairs on the surface of the leaf absent (leaf surfaces glabrous). Scape present, glabrous, 60-240 mm long. Inflorescence subtended by a bract 12-40 mm long, with one flower; floral bracts 5-9 mm long; flowers 9-14 mm long. Perianth hairy, radially symmetrical, uniformly coloured, purple, with six more or less equal tepals, the inner segments 5-9 mm long. Stamens six, in one level; filaments 1-2 mm long; anther 1-1.8 mm long, with an appendage. Style 3.2-4 mm long. Flowers in July, August, September or October. 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, Recherche, Southern Jarrah Forest, Warren, Western Mallee.
IMCRA Regions
Leeuwin-Naturaliste.
Local Government Areas (LGAs)
Albany, Augusta Margaret River, Beverley, Boyup Brook, Bridgetown-Greenbushes, Busselton, Canning, Capel, Chapman Valley, Collie, Coorow, Cranbrook, Dalwallinu, Denmark, Esperance, Gingin, Gosnells, Greater Geraldton, Harvey, Kent, Kojonup, Manjimup, Melville, Mingenew, Murray, Northampton, Plantagenet, Ravensthorpe, Swan, Three Springs, Victoria Plains, Wandering.