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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. The project team is now conducting testing of the migrated data, and a further update will be provided by the end of the financial year (1 July). 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 Wednesday, 1 July 2026 +08:00.

Hakea horrida R.M.Barker

Reference
J.Adelaide Bot.Gard. 13: 102-103 (1990)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Spreading or dense, intricately branched, rigid shrub, 0.6-2 m high, 0.7-2 m wide. Fl. white-yellow, Aug to Oct. Sand, loam, gravel, laterite.

Amanda Spooner, Descriptive Catalogue, 23 June 2003

Scientific Description

Shrubs, 0.6-2 m high; branchlets hairy. Leaves alternate, 40-70(-100) mm long, glabrous; lamina terete, once divided, pinnately divided, divided to the midrib. Inflorescences axillary, white or yellow; pedicels 7-8 mm long. Perianth 4-6 mm long, glabrous; ovary glabrous; pistil 5-8 mm long, pollen presenter conical, style glabrous. Follicles 15-20 mm long, 10-15 mm wide, corky tetrahedral projections (on external surfaces of fruit) absent; seed 9-13 mm long (including wing), 5-8 mm wide, the wing continuous or discontinuous, marginal, extending ± unequally down each lateral side. Flowers in August, September or October. Occurs in the South-west (SW) Botanical Province(s), in the Mallee (MAL) or Esperance Plains (ESP) IBRA subregion(s).

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

Distribution

IBRA Regions
Esperance Plains, Mallee.
IBRA Subregions
Eastern Mallee, Fitzgerald, Western Mallee.
Local Government Areas (LGAs)
Esperance, Gnowangerup, Kent, Kondinin, Kulin, Lake Grace, Ravensthorpe.