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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. The project team is now conducting testing of the migrated data, and a further update will be provided by the end of the financial year (1 July). 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 Wednesday, 1 July 2026 +08:00.

Isopogon alcicornis Diels
Elkhorn Coneflower

Reference
Bot.Jahrb.Syst. 35:134 (1904)
Conservation Code
Priority Three
Naturalised Status
Native to Western Australia
Name Status
Current

Low, lignotuberous shrub, 0.3-0.5 m high, up to 0.6 m wide. Fl. yellow/white/pink, Oct to Dec or Feb. Sandy soils, skeletal loam on granite. Sandhills, salt lakes, sandplains.

Amanda Spooner, Descriptive Catalogue, 31 October 2002
Image

Scientific Description

Shrubs, 0.5-1 m high; branchlets hairy, with curled hairs. Leaves alternate, 100-400 mm long, hairy or glabrous; lamina flat, once divided or twice or more divided, tripartitely divided, deeply divided, with (2-)3(-5) points or lobes; distance from base of leaf to lowest lobe 90-200 mm. Inflorescences not viscid, white or pink. Perianth 15-20 mm long, hairy, the limb apex hairy all over; pistil 15-22 mm long; pollen presenter fusiform, glabrous, 2-3.5 mm long. Cone with deciduous scales, 23-25 mm long. Flowers in January, February, March, April, May, June, July, 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). : Conservation code Priority Three (P3).

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

Distribution

IBRA Regions
Esperance Plains, Mallee.
IBRA Subregions
Eastern Mallee, Recherche.
Local Government Areas (LGAs)
Esperance.