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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.

Conostylis prolifera Benth.
Mat Cottonheads

Reference
Fl.Austral. 6:436 (1873)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Rhizomatous, tufted, stoloniferous perennial, grass-like or herb, 0.01-0.2 m high, to 0.2 m wide. Fl. yellow-cream, Aug to Oct. Red-brown loam, clayey loam, sand. Winter-damp flats.

Grazyna Paczkowska, Descriptive Catalogue, 20 June 1994
Image

Scientific Description

Leaves flat, 10-25 mm long, 0.3-0.8 mm wide; bristles or hairs on the leaf margin present or absent, 0.4-0.7 mm long, with at least some small side branches at the base, flexuose and soft, angled towards the leaf apex; hairs on the surface of the leaf present. Scape present, hairy, 30-115 mm long. Inflorescence subtended by a bract 8-15 mm long, with several flowers; floral bracts 3-4.5 mm long; pedicels present, 0.6-2 mm long; flowers 8-13 mm long. Perianth hairy, radially symmetrical, suffused with a darker colour over the base colour, yellow or green, with six more or less equal tepals, the inner segments 3.5-6.5 mm long. Stamens six, in one level; filaments 1-2.2 mm long; anther 1-2.2 mm long, without an appendage. Style 6-9 mm long. Flowers in August, September or October. Occurs in the Yalgoo, Geraldton Sandplains, Swan Coastal Plain, Avon Wheatbelt and Jarrah Forest IBRA bioregion(s), of the South-west Botanical Province.

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

Distribution

IBRA Regions
Avon Wheatbelt, Geraldton Sandplains, Jarrah Forest, Swan Coastal Plain, Yalgoo.
IBRA Subregions
Edel, Geraldton Hills, Katanning, Lesueur Sandplain, Merredin, Northern Jarrah Forest, Perth.
IMCRA Regions
Central West Coast.
Local Government Areas (LGAs)
Beverley, Bruce Rock, Carnamah, Chapman Valley, Chittering, Coorow, Corrigin, Cunderdin, Dandaragan, Dowerin, Gingin, Goomalling, Greater Geraldton, Irwin, Kulin, Mingenew, Moora, Morawa, Mount Marshall, Narrogin, Northam, Northampton, Shark Bay, Swan, Tammin, Three Springs, Toodyay, Victoria Plains, Wickepin, Wongan-Ballidu, Wyalkatchem, York.