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Service Notice

The Western Australian Herbarium’s collections management system and census were set to read-only mode on 1 October 2025. Taxonomic updates published since this time are not being reflected in Florabase, herbarium collections, or Western Australia’s taxonomic names census (Nomos). Conservation listings displayed on Florabase may also be out of date. Please refer to DBCA’s Threatened species and communities webpage for the most recent Threatened and Priority Flora List, noting that recent taxonomic updates are similarly not included. Our database migration is moving to a staging phase. We thank you for your patience as we ensure the integrity of our biodiversity data, develop new workflows, and train staff to use the new systems. Please reach out to us if you have any questions or concerns.

The notice period started at 12:00 pm on Wednesday, 1 October 2025 +08:00 and will end at 12:00 pm on Friday, 1 January 2027 +08:00.

Isopogon polycephalus R.Br.
Clustered Coneflower

Reference
Trans.Linn.Soc.London 10:73 (1810)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Erect or spreading shrub, (0.15-)0.3-1(-2) m high. Fl. yellow/cream-yellow, Aug to Dec or Jan. White or grey sand over laterite, granite or quartzite, gravel. Flats, hillslopes.

Grazyna Paczkowska, Descriptive Catalogue, 21 August 1995

Scientific Description

Shrubs, 0.5-1 m high; branchlets hairy, with curled hairs. Leaves alternate, 60-210 mm long, 6-10 mm wide, glabrous; lamina flat, widest around the middle, entire. Inflorescences not viscid, white, cream or yellow. Perianth 10-15 mm long, glabrous; pistil 10-18 mm long; pollen presenter fusiform, glabrous, 2-3 mm long. Cone with deciduous scales, 18-20 mm long. Flowers in January, August, September, October, November or December. Occurs in the South-west (SW) Botanical Province(s), in the Mallee (MAL) or Esperance Plains (ESP) IBRA subregion(s).

C. Hollister and K.R. Thiele, 19 January 2024

Distribution

IBRA Regions
Esperance Plains, Mallee.
IBRA Subregions
Eastern Mallee, Fitzgerald, Recherche, Western Mallee.
IMCRA Regions
WA South Coast.
Local Government Areas (LGAs)
Esperance, Jerramungup, Kent, Lake Grace, Plantagenet, Ravensthorpe.