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Dryandra longifolia
 
Ruler

Distribution Map
Family: Proteaceae
Distribution: South coast of Western Australia in shrubland or heathland.
Common Name: No generally accepted common name.
Derivation of Name: Dryandra...after Jonas Dryander, a swedish botanist.
longifolia...From Latin longus, long and folium, a leaf, referring to the log leaves of this species.
Conservation Status: Not currently listed under the EPBC Act*, however coded as "3RC-" under the ROTAP* system due to its restricted occurrence.

General Description:

Dryandra is a large genus of 135 species in the Protea family. Their nearest relative is the genus Banksia but, unlike the banksias, Dryandra occurs naturally only in Western Australia (Banksia can be found in all states and one species one even extends its range to islands to Australia's north).

Dryandra longifolia subsp. archeos
Dryandra longifolia subsp. archeos

Dryandra longifolia is a small to medium shrub 0.4 to about 3 metres high. The linear-shaped leaves are up to 300 mm long with stiff, triangular lobes along their length. The individual small flowers occur in bright yellow inflorescences on short branches. Flowering occurs from early winter to mid spring.

There are three recognised subspecies: subsp. longifolia, subsp. archeos and subsp. calcicola. Differentiation between the subspecies is difficult to the non-botanist.

D.longifolia has been grown by enthusiasts for some years but is not widely cultivated. It has succeeded in areas without humid, wet summers but can be expected to be difficult to maintain in humid temperate and tropical areas. Excellent drainage and a sunny location are preferred.

Propagation from seed is relatively easy and cuttings may be successful but slow to strike.




* EPBC Act = Environment Protection and Biodiversity Conservation Act 1999;
  ROTAP = Rare or Threatened Australian Plants (Briggs and Leigh, 1988)
  For further information refer the Australian Plants at Risk page


Transfer of Dryandra to Banksia
A paper published in February 2007 (see below) has proposed that the genus Dryandra be subsumed into Banksia. The paper publishes new names in Banksia for all currently recognised Dryandra species. At this stage ASGAP is retaining Dryandra as a separate genus until it becomes clear whether the published change will be generally accepted by Australia herbaria.
Mast A R and Thiele K; The transfer of Dryandra R.Br. to Banksia L.f. (Proteaceae); Australian Systematic Botany, 26 February 2007

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Updated: Monday 25 February 2008.