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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 trachytheca F.Muell.
Rough-fruit Grevillea

Reference
Fragm. (Mueller) 6:207 (1868)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Erect to spreading shrub, (0.4-)0.6-2 m high. Fl. white/cream-yellow, May to Jun or Aug to Oct. Yellow or orange-brown sand.

Grazyna Paczkowska, Descriptive Catalogue, 17 August 1995
Image

Scientific Description

Shrubs, 1-1.5 m high; branchlets hairy, not glaucous. Leaves alternate, 15-35 mm long, 1-2 mm wide, hairy, on the abaxial surface, the hairs straight; lamina flat, more or less the same width throughout, once divided, tripartitely divided, entire or divided to the midrib; lobes 15-35 mm long, 1-2 mm wide, the margins revolute, enclosing the lower surface of the leaf blade, forming a groove either side of the midvein. Inflorescences terminal, white or cream; pedicels 2.5-3.5 mm long. Perianth 2-3.5 mm long; tepals all free after flower opens, glabrous; ovary glabrous, stipitate, the stipe 0.2-0.5 mm long; pistil 5-6.5 mm long, white or cream, pollen presenter conical, style glabrous. Follicles glabrous, not viscid, dehiscent, 11-14 mm long. Flowers in May, June, July, August, September or October. Occurs in the Eremaean (ER) or South-west (SW) Botanical Province(s), in the Carnarvon (CAR) or Geraldton Sandplains (GS) IBRA subregion(s).

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

Distribution

IBRA Regions
Carnarvon, Geraldton Sandplains.
IBRA Subregions
Geraldton Hills, Wooramel.
IMCRA Regions
Central West Coast.
Local Government Areas (LGAs)
Northampton, Shark Bay.