| Coastal hakea | |
|---|---|
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| Hakea clavata in the Cape Le Grand National Park | |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Proteales |
| Family: | Proteaceae |
| Genus: | Hakea |
| Species: | H. clavata
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| Binomial name | |
| Hakea clavata | |
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| Occurrence data from AVH | |
Hakea clavata, commonly known as coastal hakea[2] is a shrub that is endemic to an area along the south coast of Western Australia. It has thick leaves, pink and grey flowers and grows on rocky outcrops.
Hakea clavata is a lignotuberous spreading or sprawling shrub up to 2.5 metres (8 ft) wide and 0.5 to 2.0 m (1.6 to 6.6 ft) high. Mid-green leaves are thick, flattened, long and narrow 2 to 8 centimetres (0.8 to 3.1 in) long and 4 to 11 millimetres (0.157 to 0.433 in) wide, ending in a hard sharp point. Sometimes club-shaped widening at the apex. The inflorescence has 60-80 white and pink flowers appearing in short racemes in leaf axils and tips of branches. The perianth has a pink claw, grey limbs and white interior. Woody fruit are egg-shaped with the widest part nearer the stem 1.5 to 2.5 cm (0.59 to 0.98 in) long and 0.9 to 1.0 cm (0.35 to 0.39 in) wide. Alternatively egg-shaped with the wider section toward the apex, both shapes having two small horns at the back of the fruit. The black-brown seeds have an obliquely obovate shape and a length of 16 mm (0.630 in). Each seed has a broad wing along one side of seed body.[3][4][5]
Hakea clavata was first formally described in 1805 by Jacques Labillardière in Novae Hollandiae plantarum specimen. Labillardière may have made a type collection when at the Esperance region in December 1792.[6] The specific epithet (clavata) is derived from the Latin word clava meaning "club",[7] referring to the club-shape of the leaves.[3]
Coastal hakea is found on the mainland and on some of the islands between Israelite Bay and Esperance and a single population is known at Hopetoun to the west.[3] The range covers southeastern areas of the Southwest Botanical Province. The species grows in rocky sandy clay soils among granite outcrops and withstands salt laden winds.[8]