Wrinkled hakea
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Hakea
Species:
H. rugosa
Binomial name
Hakea rugosa
Occurrence data from AVH

Hakea rugosa, commonly known as wrinkled hakea or dwarf hakea,[2] is a shrub of the family Proteaceae native to Australia. It has sharp needle-shaped leaves and white or cream fragrant flowers in profusion from August to October.

Description

Hakea rugosa is a wide-spreading shrub 0.7–2 m (2 ft 4 in – 6 ft 7 in) high with stiff, straight needle-shaped leaves 1.5–6 cm (0.59–2.36 in) long and 0.9–1.3 mm (0.035–0.051 in) wide. The new growth leaves and branches are covered in flattened, short, silky hairs. The inflorescence consists of densely clustered cream or white flowers in profusion in the leaf axils. The pedicel is 2.0–3.5 mm (0.079–0.138 in) long and covered with flattened silky hairs. The perianth 3–3.5 mm (0.12–0.14 in) long with silky hairs at the base, the pistil 4.5–6 mm (0.18–0.24 in) long and upright. The small, S-shaped fruit are more or less at right angle to the stalk, 1.5–2.2 cm (0.59–0.87 in) long and 0.7–1.6 cm (0.28–0.63 in) wide. The fruit are coarsely wrinkled, occasionally with fine dark warts and the 3–7 mm (0.12–0.28 in) long narrow beak is bent sharply back onto the fruit. Flowering occurs from August to October.[3][4]

Taxonomy and naming

Hakea rugosa was first described in 1810 by botanist Robert Brown and published the description in Transactions of the Linnean Society of London.[5][6] The specific epithet (rugosa) is derived from the Latin, rugosus,-a,-um or "wrinkle", giving wrinkled, rugose.[7]

Distribution and habitat

Dwarf hakea grows on loam or sand in mallee scrub or coastal heath from Eyre Peninsula in South Australia to western Victoria.[8]

References

  1. ↑ "Hakea rugosa". Australian Plant Census. Retrieved 19 September 2019.
  2. ↑ "Hakea rugosa". Nindethana Seeds. Retrieved 19 September 2019.
  3. ↑ "Hakea rugosa". VicFlora. Royal Botanic Gardens Victoria. Retrieved 19 September 2019.
  4. ↑ Holliday, Ivan (2005). Hakeas a Field and Garden Guide. Reed New Holland. ISBN 1-877069-14-0.
  5. ↑ "Hakea rugosa". Biodiversity Heritage Library. Retrieved 19 September 2019.
  6. ↑ "Hakea rugosa R. Br". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government.
  7. ↑ Plantillustrations: Hakea rugosa. Retrieved 8 December 2018.
  8. ↑ Barker, Robyn M.; Haegi, Laurence A.; Barker, William R. Flora of Australia Volume 17B Proteacea 3 Hakeas to Dryandra. ABRS. ISBN 0-643-06454-0.
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