Hakea petiolaris (Sea Urchin Hakea)

Hakea petiolaris, cult. Keilor Botanic gardens - northeast Melbourne

Photograph by Cas liber. Some rights reserved. (view image details)

Growth Characteristics information is sourced from: State Flora Catalog, Government of South Australia Licensed under Creative Commons CC BY 4.0 license.

SEA URCHIN HAKEA FACTS

distribution map showing range of Hakea petiolaris in Australia

Map is from The Atlas of Living Australia web site, licensed under Creative Commons Attribution 3.0 Australia License

Common Name
Sea Urchin Hakea

Description
The Sea Urchin Hakea is an upright shrub or small tree It produces globular clusters of pink and cream flowers in autumn and winter (March to July). The pale grey leaves are alternate and 4cm to 150cm in length and 1cm to 6cm wide. Leaves are elliptic or spathulate and undissected with smooth margins. Fruit is woody seed capsules about 2cm to 3.5cm long and 1cm to 2cm wide.

Habitat
found on loam and granite soils

Distribution
The Sea Urchin Hakea is endemic to south-west of Western Australia.

Growth Characteristics
Height (m): 3 - 5
Spread (m): 2 - 3
Soil Texture: sand, loam, clay
Soil pH: acid soils, neutral soils, alkaliine soils
Frost Sensitivity: moderately sensitive
Minimum Rainfall (mm): 450
Flower Colour: purple & white
Flower Season: autumn, winter

(source: SA State Flora Catalog)

Wildlife Interest
attracts honeyeaters

Classification

Class:	Magnoliopsida
Order:	Proteales
Family:	Proteaceae
Genus:	Hakea
Species:	petiolaris
Common Name:	Sea Urchin Hakea

Relatives in same Genus
  Hakea archaeoides
  Hakea bakeriana
  Hakea bucculenta
  Hakea decurrens
  Hakea drupacea
  Hakea myrtoides
  Hakea oleifolia
  Hakea plurinervia
  Hakea scoparia
  Hakea teretifolia