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Service Notice

The Western Australian Herbarium’s collections management system and census were set to read-only mode on 1 October 2025. Taxonomic updates published since this time are not being reflected in Florabase, herbarium collections, or Western Australia’s taxonomic names census (Nomos). Conservation listings displayed on Florabase may also be out of date. Please refer to DBCA’s Threatened species and communities webpage for the most recent Threatened and Priority Flora List, noting that recent taxonomic updates are similarly not included. Our database migration is moving to a staging phase. We thank you for your patience as we ensure the integrity of our biodiversity data, develop new workflows, and train staff to use the new systems. Please reach out to us if you have any questions or concerns.

The notice period started at 12:00 pm on Wednesday, 1 October 2025 +08:00 and will end at 12:00 pm on Friday, 1 January 2027 +08:00.

Grevillea pteridifolia Knight
Silky Grevillea

Reference
Cult.Prot. 121 (1809)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Tree or shrub, 4-10(-18) m high. Fl. orange, Apr to Jul or Dec. Yellow sand, sandstone.

Grazyna Paczkowska, Descriptive Catalogue, 15 August 1995
Image

Scientific Description

Trees or Shrubs, 2-15 m high; branchlets hairy, with a glaucous bloom or not glaucous. Leaves alternate, 250-450 mm long, hairy, on the abaxial surface, the hairs straight; lamina flat, once divided, pinnately divided, divided to the midrib; lobes 150-250 mm long, 1-10 mm wide, the margins 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 or terminal, green, white, orange or grey; pedicels 4-7 mm long. Perianth 7-10 mm long; tepals all free after flower opens, hairy, simple-hairy; ovary hairy, sessile; pistil 25-30 mm long, yellow or orange, pollen presenter oblique, style glabrous. Follicles hairy, not viscid, dehiscent, 14-21 mm long. Flowers in May, June, July, August, September, October, November or December. Occurs in the Northern (N) Botanical Province(s), in the Northern Kimberley (NK), Victoria Bonaparte (VB), Central Kimberley (CK) or Dampierland (DL) IBRA subregion(s).

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

Distribution

IBRA Regions
Central Kimberley, Dampierland, Northern Kimberley, Victoria Bonaparte.
IBRA Subregions
Berkeley, Fitzroy Trough, Keep, Mitchell, Pentecost.
IMCRA Regions
Kimberley.
Local Government Areas (LGAs)
Derby-West Kimberley, Wyndham-East Kimberley.