Hakea oldfieldii is a shrub of the family Proteaceae and is endemic to South West region of Western Australia. It has small white or cream-yellow flowers in profusion in spring.
Hakea oldfieldii is an open, straggling shrub with upright branches and growing to a height of 2.5m (08.2feet). The smooth, needle-shaped leaves are more or less long and wide and grow alternately. The rigid dark green leaves may be curving or straight and end in a sharp point. The branchlets are smooth and covered with a bluish green powdery film. The inflorescence consists of 8-20 white or cream-yellow flowers in a raceme in the leaf axils on a smooth stalk long. The flowers appear in profusion and have an unpleasant scent. The over-lapping flower bracts are long, the pedicel long. The smooth, cream-white perianth long and the pistil long. The fruit are egg-shaped almost rounded, long, wide with an uneven surface, occasionally warty ending with two prominent horns about long. Flowering occurs from August to October.[1] [2]
Hakea oldfieldii was first formally described by George Bentham in 1870 and published the description in Flora Australiensis.[3] [4] The specific epithet oldfieldii honours Augustus Frederick Oldfield who first discovered the species.[2]
This species is found in the south-west from Bunbury and Busselton to the Stirling Range growing in well-drained rocky loam or clay over ironstone in winter-wet sites.[5]
Hakea oldfieldii is classified as "Priority Three" by the Government of Western Australia Department of Parks and Wildlife meaning that it is poorly known and known from only a few locations but is not under imminent threat.[6]