Biology:Maireana microphylla

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Short description: Species of plant in the amaranth family

Maireana microphylla
File:Maireana microphylla.jpg
Near Morangarell
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Amaranthaceae
Genus: Maireana
Species:
M. microphylla
Binomial name
Maireana microphylla
(Moq.) Paul G.Wilson[1]
Synonyms[1]
  • Enchylaena microphylla Moq.
  • ? Enchylaena tomentosa var. leptophylla Benth.
  • Kochia microphylla (Moq.) F.Muell.
  • ? Kochia tomentosa f. tenuis Domin
  • Kochia tamariscina auct. non (Lindl.) J.M.Black

Maireana microphylla, commonly known as cotton bush, small-leaf bluebush or eastern cottonbush,[2] is a species of flowering plant in the family Amaranthaceae and is endemic to eastern Australia. It is a widely-branched shrub with slender branches, more or less terete leaves, flowers arranged singly but forming dense, leafy spikes and a tube-shaped fruiting perianth with a simple wing with a notched edge.

Description

Maireana microphylla is a weakly upright shrub that typically grows to a height of up to 1 m (3 ft 3 in) and has slender branches that are sometimes covered with hairs pressed against the surface. The leaves are arranged alternately, subterete, mostly 2–4 mm (0.079–0.157 in) long. The flowers are arranged singly but form densely dense, leafy spikes, the fruiting perianth glabrous with a shallowly hemispherical tube 1.5–2 mm (0.059–0.079 in) high in diameter and sometimes with a wing about 7 mm (0.28 in) in diameter with a radial slit and a notched edge.[2][3][4][5]

Taxonomy

This species was first formally described in 1849 by Alfred Moquin-Tandon who gave it the name Enchylaena microphylla in de Candolle's Prodromus Systematis Naturalis Regni Vegetabilis.[6][7] In 1975, Paul Wilson transferred the species to Maireana as M. microphylla in the journal Nuytsia.[8] The specific epithet (microphylla) means 'small-leaved'.[9]

Distribution and habitat

Cottonbush is a widespread colonising species in heavy loamy or poorer soils in south-eastern Queensland,[2] eastern New South Wales[4] and northern Victoria.[5]

Conservation status

Maireana microphylla is listed as "endangered' in Victoria under the Victorian Government Flora and Fauna Guarantee Act.[5]

References

  1. ↑ 1.0 1.1 "Maireana microphylla". Australian Plant Census. https://biodiversity.org.au/nsl/services/apc-format/display/57772. 
  2. ↑ 2.0 2.1 2.2 Wilson, Paul G.. "Maireana microphylla". Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water: Canberra.. https://profiles.ala.org.au/opus/foa/profile/Maireana%20microphylla. 
  3. ↑ Wilson, Paul G. (1975). "A Taxonomic Revision of the genus Maireana (Chenopodiaceae).". Nuytsia 2 (1): 47. https://www.biodiversitylibrary.org/page/53253933#page/53/mode/1up. Retrieved 9 August 2025. 
  4. ↑ 4.0 4.1 Jacobs, Surrey Wilfrid Laurance. "Maireana microphylla". Royal Botanic Garden, Sydney. https://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Maireana~microphylla. 
  5. ↑ 5.0 5.1 5.2 Walsh, Neville G.; Stajsic, Val. "Maireana microphylla". Royal Botanic Gardens Victoria. https://vicflora.rbg.vic.gov.au/flora/taxon/62b40a56-6654-4afb-ab74-52dc6d25cbb8. 
  6. ↑ "Enchylaena microphylla". Australian Plant Name Index. https://biodiversity.org.au/nsl/services/rest/instance/apni/516437. 
  7. ↑ Moquin-Tandon, Alfred; de Candolle, Augustin P. (1849). Prodromus Systematis Naturalis Regni Vegetabilis. Paris: Sumptibus Sociorum Treuttel et Würtz. p. 128. https://www.biodiversitylibrary.org/item/7163#page/134/mode/1up. Retrieved 9 August 2025. 
  8. ↑ "Maireana marginata". Australian Plant Name Index. https://biodiversity.org.au/nsl/services/rest/instance/apni/461101. 
  9. ↑ George, Alex S.; Sharr, Francis A. (2023). Western Australian Plant Names and Their Meanings - A Glossary (fifth ed.). Kardinya: Four Gables Press. p. 260. ISBN 9780645629538. 

Wikidata ☰ Q15591192 entry