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Adriana quadripartita

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Adriana quadripartita
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malpighiales
Family: Euphorbiaceae
Genus: Adriana
Species:
A. quadripartita
Binomial name
Adriana quadripartita
Synonyms
  • Adriana bloudowskyana Mull.Arg. ex Pax
  • Adriana klotzschii (F.Muell.) Mull.Arg.
  • Croton quadripartitus Labill.
  • Trachycaryon klotzschii F.Muell.

Adriana quadripartita, the bitter bush, is a shrub in the family Euphorbiaceae. The species, which is endemic to southern Australia, has an erect open habit, growing to between 0.5 and 3 metres or more high.[2][3][4]

The lanceolate or ovate leaves are opposite, coarsely toothed and have a glabrous upper surface.[3][5] They are 5 to 10 cm long and 2 to 4 cm wide.[5] The male flower spikes are up to 17 cm long.[3] The female flowers, which occur on separate plants, appear in clusters.[5] These are followed by ovoid capsules which are about 1 centimetre in diameter.[2]

Forms

There are two recognised forms, one with wholly glabrous leaves and another pubescent form with leaves which are whitish tomentose on the underside.

Glabrous form

This form, also known as rare bitter-bush or Adriana quadripartita sensu stricto, occurs in Western Australia, South Australia and in Victoria where it reaches its eastern limit at Port Phillip heads.[2][4][5] This form is listed as "threatened" in Victoria under the Flora and Fauna Guarantee Act 1988.[6]

Pubescent form

This form, also known as coast bitter-bush, is sometimes recognised as a species in its own right - Adriana klotzchii. It occurs on sand dunes along the coast of South Australia and into Victoria as far east as Wilsons Promontory.[3][5] In South Australia, flowers are mostly produced in spring but may appear year round.[3] This form is a host plant of the bitter-bush blue butterfly (Theclinesthes albocincta).[7]

Cultivation

The species can be propagated by cuttings. The pubescent form may be used as a protective screen planting against salt-spray in coastal areas.[8]

  • kvinna
    kvinna
  • Male
    Male

References

  1. ^ "Adriana quadripartita". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government, Canberra. Retrieved 2009-07-28.
  2. ^ a b c "Adriana quadripartita". Electronic Flora of South Australia Fact Sheet. State Herbarium of South Australia. Archived from the original on 2012-11-27. Retrieved 2009-07-28.
  3. ^ a b c d e "Adriana klotzchii". Electronic Flora of South Australia Fact Sheet. State Herbarium of South Australia. Retrieved 2009-07-28.[permanent dead link]
  4. ^ a b "Adriana quadripartita". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  5. ^ a b c d e Costermans, L. (1981). Native Trees and Shrubs of South-eastern Australia. Australia: Rigby. ISBN 072701403X.
  6. ^ "Threatened List (November 2008) - Flora and Fauna Guarantee Act 1988" (PDF). Department of Sustainability and Environment. Retrieved 2009-07-28.
  7. ^ "Bitter-bush Blue" (PDF). Eco Voice. Archived from the original (PDF) on 2016-03-06. Retrieved 2009-07-28.
  8. ^ Wrigley J.W. and Fagg M. (1979). Australian Native Plants. William Collins Publishers Sydney, Australia. ISBN 0-00-216416-7.
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