Olearia phlogopappa

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Olearia phlogopappa
Olearia phlogopappa.jpg
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Tribe: Astereae
Genus: Olearia
Species: O. phlogopappa
Binomial name
Olearia phlogopappa
(Labill.) Benth.[1]
Synonyms

Aster phlogopappus Labill.
Olearia gunniana (DC.) Hook. var. gunniana
Olearia gunniana var. phlogopappa (Labill.) Hutch.
Olearia gunniana (DC.) Hook.

Olearia phlogopappa, the dusty daisy-bush, is a species of flowering plant in the family Asteraceae.[2] It occurs in open forest, woodland, heath and coastal shrubland in New South Wales, Victoria, and Tasmania.[3][4]

Description[edit]

Oleraia phlogopappa grows to between 0.3 and 3 metres in height.[5] The leaves are quite variable, but are usually grey-green with minute hairs on the underside which impart a whitish or yellowish appearance.[5] The leaf margins are often bluntly toothed.[5] White, pink or mauve "daisy" flower heads around 20–25 mm in diameter are mainly produced in spring and early summer.[3]

Taxonomy[edit]

The species was first formally described by Jacques Labillardière in 1806 in Novae Hollandiae Plantarum Specimen and named Aster phlogopappus.[1] In 1836 the species was transferred to the genus Olearia by Augustin Pyramus de Candolle in Prodomus.[1]

There are 6 varieties which are currently recognised:[1]

  • O. phlogopappa var. angustifolia (Hook.f.) W.M.Curtis
  • O. phlogopappa var. brevipes (Hook.f.) W.M.Curtis
  • O. phlogopappa var. flavescens (Hutch.) J.H.Willis
  • O. phlogopappa var. microcephala (Hook.f.) W.M.Curtis
  • O. phlogopappa (Labill.) DC. var. phlogopappa
  • O. phlogopappa var. salicifolia (Hook.f.) W.M.Curtis

Cultivation[edit]

The species withstands moderate frost and drought, but prefers moist conditions and a well drained soil in a sunny or partially shaded position.[3] Pruning is required to stop plants becoming spindly.[3] Cuttings are the usual method of propagation as seed may be unreliable.[3]

Cultivars[edit]

A number of cultivars are commercially available including:[1][6]

  • 'Blue Gem'
  • 'Brevipes'
  • 'Cana'
  • 'Combers'
  • 'Comber's Blue'
  • 'Comber's Pink'
  • 'Nyman's Splendens'
  • 'Pink Gem'
  • 'Salicifolia'
  • 'Sawtooth'
  • 'Splendens'
  • 'Splendens Blue'
  • 'Splendens Lavender'
  • 'Splendens Pink'
  • 'Tournaig Titch'

Another cultivar, 'Havering Blush', is a hybrid between Olearia phlogopappa and Olearia lirata.[6]

References[edit]

  1. ^ a b c d e "Olearia phlogopappa". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government, Canberra. Retrieved 2009-06-28. 
  2. ^ "Olearia phlogopappa (DC.) Benth". PlantNET - New South Wales Flora Online. Royal Botanic Gardens & Domain Trust, Sydney Australia. Retrieved 2009-06-28. 
  3. ^ a b c d e "Olearia phlogopappa". Australian Native Plants Society (Australia) - ANPSA. Retrieved 2009-06-28. 
  4. ^ "Gippsland Vegetation Types: Ecological Vegetation Classes (EVC's)" (PDF). Department of Primary Industries (Victoria). Retrieved 2009-06-29. 
  5. ^ a b c Costermans, L. (1981). Native Trees and Shrubs of South-eastern Australia. Australia: Rigby. ISBN 072701403X. 
  6. ^ a b "'Olearia". Horticultural Database. Royal Horticultural Society. Retrieved 2009-06-29.