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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 extorris S.Moore

Reference
J.Linn.Soc.,Bot. 34:221 (1898)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Spreading, bushy shrub, 1-2.5(-3) m high. Fl. red-pink, May to Oct. Rocky soils on laterite or granite, red loam. Rocky situations, hillslopes, creek banks.

Grazyna Paczkowska, Descriptive Catalogue, 8 August 1995
Image

Scientific Description

Shrubs, 1-2 m high; branchlets hairy, not glaucous. Leaves alternate, 60-110 mm long, 1-3 mm wide, hairy, on the adaxial or abaxial surface, the hairs straight; lamina flat, more or less the same width throughout, entire, the margins recurved or revolute, exposing the lower surface of the leaf blade or enclosing the lower surface of the leaf blade, forming a groove either side of the midvein. Inflorescences axillary, yellow, red or pink; pedicels 3-5 mm long. Perianth 9-12 mm long; tepals some joined and some free after flower opens, hairy, simple-hairy; ovary hairy, stipitate, the stipe 2-3.5 mm long; pistil 20-35 mm long, yellow or red, pollen presenter oblique, style glabrous. Follicles hairy, not viscid, dehiscent, 11-15 mm long. Flowers in April, May, June, July, August or September. Occurs in the Eremaean (ER) or South-west (SW) Botanical Province(s), in the Yalgoo (YAL), Murchison (MUR), Great Victoria Desert (GVD), Coolgardie (COO) or Avon Wheatbelt (AW) IBRA subregion(s).

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

Distribution

IBRA Regions
Avon Wheatbelt, Coolgardie, Great Victoria Desert, Murchison, Yalgoo.
IBRA Subregions
Eastern Murchison, Merredin, Shield, Southern Cross, Tallering, Western Murchison.
Local Government Areas (LGAs)
Cue, Greater Geraldton, Laverton, Leonora, Menzies, Mingenew, Morawa, Mount Magnet, Mount Marshall, Murchison, Perenjori, Sandstone, Three Springs, Wiluna, Yalgoo, Yilgarn.