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Cuscuta australis

Topic: Biology

 From HandWiki - Reading time: 2 min

Short description: Species of flowering plant

Australian dodder
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Solanales
Family: Convolvulaceae
Genus: Cuscuta
Species:
C. australis
Binomial name
Cuscuta australis
R.Br.[1][2]
Occurrence data from GBIF[3]
Synonyms[4]

Cuscuta obtusiflora var. australis (R.Br.) Engelm.
Grammica australis (R.Br.) Hadac & Chrtek
Grammica scandens subsp. australis (R.Br.) Holub

Cuscuta australis, commonly known as Australian dodder, is a herb in the family Convolvulaceae.[1]

The annual parasitic twining herb or climber that is associated with many hosts. It blooms between November and March producing 5-merous[5] white-cream-yellow flowers[1] in compact clusters on pedicels which are less than 2.5 millimetres (0.1 in) long.[5] The lobes are rounded-triangular and shorter than or equal in length to the corolla tube.[5] It parasitises both native and exotic plants.[5] To maximize its seed yield, it synchronizes its flowering to that of its host plant via detection of a signaling protein in the host.[6]

Distribution

Australia

In Western Australia, it is found in a small area in the Fitzgerald River National Park in the Great Southern and Goldfields-Esperance regions of Western Australia where it grows in sandy-clay soils.[1] It is also found in New South Wales, Victoria, Queensland,[5] and New Guinea[7]

Elsewhere

It is found widely throughout the world and considered native to Europe, tropical Asia, Africa, Australasia and temperate Asia.[4]

Taxonomy

C. australis was first described by Robert Brown in 1810.[2][1] The type specimen, BM00016305,[8] was collected on 25 September 1802 at Broad Sound, Queensland, Australia by Robert Brown.

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 "Cuscuta australis". FloraBase. Western Australian Government Department of Parks and Wildlife. https://florabase.dpaw.wa.gov.au/browse/profile/6662. 
  2. ↑ 2.0 2.1 Brown, R. 1810. Prodromus florae Novae Hollandiae 491
  3. ↑ GBIF.org (26 June 2018) GBIF Occurrence Download https://doi.org/10.15468/dl.gqc46w Cuscuta australis R.Br.
  4. ↑ 4.0 4.1 Govaerts, R.. "Cuscuta australis". Board of Trustees of the Royal Botanic Gardens, Kew. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:267308-1. 
  5. ↑ 5.0 5.1 5.2 5.3 5.4 Johnson, R.W. (1992). "Cuscuta australis". National Herbarium of NSW, Royal Botanic Gardens, Sydney. http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Cuscuta~australis. 
  6. ↑ Shen, G., Liu, N., Zhang, J., Xu, Y., Baldwin, I. T., Wu, J. (2020-08-31). "Cuscuta australis (dodder) parasite eavesdrops on the host plants' FT signals to flower". Proceedings of the National Academy of Sciences 117 (37): 23125–23130. doi:10.1073/pnas.2009445117. PMID 32868415. Bibcode: 2020PNAS..11723125S. 
  7. ↑ AVH: Cuscuta australis occurrence data (Distribution map) Australasian Virtual Herbarium. Retrieved 26 June 2018
  8. ↑ "Type of Cuscuta australis R.Br.". Global Plants. https://plants.jstor.org/stable/viewer/10.5555/al.ap.specimen.bm000016305. Retrieved 26 June 2018. 

Wikidata ☰ Q1145984 entry



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