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Service Notice

The Western Australian Herbarium’s collections management system, WAHerb, and DBCA’s taxonomic names application, WACensus, have been set to read-only mode since 1 October 2025. Recent taxonomic changes are not reflected in Florabase, herbarium collections, or in the census. We are hoping to be able to reinstate services around December 15; we will provide an update at that time.

The notice period started at 9:00 am on Wednesday, 1 October 2025 +08:00 and will end at 12:00 pm on Monday, 15 December 2025 +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.