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Verbesina encelioides is a flowering plant in the family Asteraceae. The species is native to many parts of the United States and Mexico.[1] It is naturalized in other parts of North America, the Middle East, Spain, Argentina, Australia and the Pacific islands.[2] Common names include golden crownbeard,[3] gold weed, wild sunflower,[4] cowpen daisy, butter daisy, crown-beard, American dogweed and South African daisy.[1][5]

Verbesina encelioides
Verbesina encelioides 2004-08-22.jpg
A plant in flower near Valle, Arizona
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Genus: Verbesina
Species: V. encelioides
Binomial name
Verbesina encelioides
Synonyms

Ximenesia encelioides Cav.

Cowpen Daisy- Verbesina encelioides.jpg

The species responds strongly to disturbances on suitable sites and retards the development of other local species. Research has identified an allelopathic effect on radishes[6] which may explain its ability to dominate other species in some locations.

ReferencesEdit

  1. ^ a b "Verbesina encelioides". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 2008-01-15. 
  2. ^ "Crown Beard (Verbesina encelioides)". Victorian Resources Online. Department of Primary Industries. Retrieved 29 July 2011. 
  3. ^ "BSBI List 2007". Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-01-25. Retrieved 2014-10-17. 
  4. ^ http://www.herbiguide.com.au/Descriptions/hg_Crownbeard.htm
  5. ^ "Verbesina encelioides". Native Plant Database. Lady Bird Johnson Wildflower Center. Retrieved 5 April 2012. 
  6. ^ "Allelopathic potential of Verbesina encelioides root leachate in soil". Canadian Journal of Botany, 1999, Vol. 77, No. 10 pp. 1419-1424. Canadian Journal of Botany. Retrieved 17 May 2013. 

Further readingEdit

  • Everitt, J.H.; Lonard, R.L.; Little, C.R. (2007). Weeds in South Texas and Northern Mexico. Lubbock: Texas Tech University Press.  ISBN 0-89672-614-2