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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.

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Isopogon divergens R.Br.
Spreading Coneflower

Reference
Prodr. Suppl. 7 (1830)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Non-lignotuberous shrub, 0.3-2 m high. Fl. red-pink-purple, Aug to Oct. Gravelly or granitic soils.

Grazyna Paczkowska, Descriptive Catalogue, 18 August 1995
Image

Scientific Description

Shrubs, 1-1.5 m high; branchlets hairy, with curled hairs. Leaves alternate, 50-150 mm long, 1-1.5 mm wide, glabrous; lamina terete, once divided, pinnately divided or tripartitely divided, entire or divided to the midrib, straight or curved, scabrous, apex pungent, 1-1.3 mm long, with 3-5(-7) points or lobes; distance from base of leaf to lowest lobe 25-35 mm. Inflorescences not viscid, pink or purple. Perianth 15-25 mm long, hairy, the limb apex hairy at the apex only; pistil 17-25 mm long; pollen presenter not fusiform, hairy, 4.5-5 mm long, the brush 2-3 mm long. Cone with deciduous scales, 15-25 mm long. Flowers in August, September or October. Occurs in the South-west (SW) Botanical Province(s), in the Geraldton Sandplains (GS), Swan Coastal Plain (SWA), Avon Wheatbelt (AW), Jarrah Forest (JF) or Mallee (MAL) IBRA subregion(s).

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

Distribution

IBRA Regions
Avon Wheatbelt, Geraldton Sandplains, Jarrah Forest, Mallee, Swan Coastal Plain.
IBRA Subregions
Dandaragan Plateau, Geraldton Hills, Katanning, Lesueur Sandplain, Merredin, Northern Jarrah Forest, Perth, Southern Jarrah Forest, Western Mallee.
IMCRA Regions
Central West Coast.
Local Government Areas (LGAs)
Beverley, Brookton, Bruce Rock, Carnamah, Chapman Valley, Chittering, Coorow, Corrigin, Cunderdin, Dalwallinu, Dandaragan, Gingin, Goomalling, Greater Geraldton, Irwin, Kalamunda, Kellerberrin, Kojonup, Kulin, Lake Grace, Merredin, Mingenew, Moora, Morawa, Mundaring, Narembeen, Northam, Northampton, Perenjori, Pingelly, Quairading, Serpentine-Jarrahdale, Swan, Tammin, Three Springs, Toodyay, Victoria Plains, Wickepin, Wongan-Ballidu, York.