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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.

Grevillea oligantha F.Muell.

Reference
Fragm. (Mueller) 6:206 (1868)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Much-branched shrub, (0.3-)0.6-1.8(-2.5) m high. Fl. red-orange-pink, Apr to Dec or Jan. Sandy or clayey loam soils over laterite or limestone, often with gravel.

Grazyna Paczkowska, Descriptive Catalogue, 11 August 1995
Image

Scientific Description

Shrubs, 1-2.5 m high; branchlets hairy, not glaucous. Leaves alternate, 25-70 mm long, 5-10 mm wide, hairy or glabrous, on the adaxial or abaxial surface, the hairs straight; lamina flat, clearly widest above the middle, entire, the margins recurved. Inflorescences axillary or terminal, yellow, orange or brown; pedicels 4-7 mm long. Perianth 10-15 mm long; tepals all free after flower opens, hairy, simple-hairy; ovary glabrous, stipitate, the stipe 2-3 mm long; pistil 18-25 mm long, yellow, pollen presenter lateral or oblique, style glabrous. Follicles glabrous, not viscid, dehiscent, 10-12 mm long. Flowers in May, June, July, August, September, October or November. Occurs in the Eremaean (ER) or South-west (SW) Botanical Province(s), in the Coolgardie (COO), Mallee (MAL) or Esperance Plains (ESP) IBRA subregion(s).

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

Distribution

IBRA Regions
Coolgardie, Esperance Plains, Mallee.
IBRA Subregions
Eastern Goldfield, Eastern Mallee, Fitzgerald, Mardabilla, Recherche, Southern Cross, Western Mallee.
IMCRA Regions
WA South Coast.
Local Government Areas (LGAs)
Albany, Broomehill-Tambellup, Dundas, Esperance, Gnowangerup, Jerramungup, Kent, Kondinin, Lake Grace, Ravensthorpe, Yilgarn.