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Service Notice

The Western Australian Herbarium’s collections management system, WAHerb, and DBCA’s taxonomic names application, WACensus, have been set to read-only mode since 1 October 2025. Recent taxonomic changes are not reflected in Florabase, herbarium collections, or in the census. We are hoping to be able to reinstate services around December 15; we will provide an update at that time.

The notice period started at 9:00 am on Wednesday, 1 October 2025 +08:00 and will end at 12:00 pm on Monday, 15 December 2025 +08:00.

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Grevillea biformis Meisn. subsp. biformis

Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Shrub, 0.9-3 m high. Fl. white-cream-yellow-orange, Jan to Mar or Aug to Dec. Yellow or grey sand, gravelly loam.

Grazyna Paczkowska, Descriptive Catalogue, 4 August 1995

Scientific Description

Shrubs, 1.5-2.5 m high; branchlets hairy, not glaucous. Leaves alternate, 50-150 mm long, 1-2 mm wide, hairy, on the adaxial or abaxial surface, the hairs straight; lamina flat, more or less the same width throughout, entire, the margins flat. Inflorescences axillary or terminal, white, cream or pink; pedicels 2-3 mm long. Perianth 3-4 mm long; tepals all free after flower opens, glabrous; ovary glabrous, stipitate, the stipe 0.5-1 mm long; pistil 5-8 mm long, white or cream, pollen presenter conical, style glabrous. Follicles glabrous, not viscid, dehiscent, 2.5-3(-4) mm long. Flowers in June, July, August, September or October. Occurs in the Eremaean (ER) or South-west (SW) Botanical Province(s), in the Yalgoo (YAL), Coolgardie (COO), Geraldton Sandplains (GS), Swan Coastal Plain (SWA) or Avon Wheatbelt (AW) IBRA subregion(s).

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

Distribution

IBRA Regions
Avon Wheatbelt, Coolgardie, Geraldton Sandplains, Mallee, Swan Coastal Plain, Yalgoo.
IBRA Subregions
Dandaragan Plateau, Geraldton Hills, Katanning, Lesueur Sandplain, Merredin, Perth, Southern Cross, Tallering, Western Mallee.
IMCRA Regions
Central West Coast.
Local Government Areas (LGAs)
Bruce Rock, Carnamah, Chapman Valley, Coorow, Corrigin, Dalwallinu, Dandaragan, Dumbleyung, Goomalling, Greater Geraldton, Irwin, Kent, Kondinin, Kulin, Lake Grace, Merredin, Moora, Morawa, Mount Marshall, Narembeen, Northampton, Perenjori, Quairading, Three Springs, Wongan-Ballidu, Yilgarn.