Summary ²

Parthenium hysterophorus is a species of flowering plant in the aster family, Asteraceae, that is native to the American tropics. Common names include Santa Maria Feverfew and Whitetop Weed. It is a common invasive species in India, Australia, and parts of Africa. P. hysterophorus invades all disturbed land, including farms pastures, and roadsides. In some areas, outbreaks have been of almo In India, it is locally known as Congress Grass or Gajar Ghans. It was first

Sources and Credits

1. (c) Dinesh Valke, some rights reserved (CC BY-NC-ND), http://www.flickr.com/photos/91314344@N00/2464214378
2. (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Parthenium_hysterophorus

More Info

• iNat taxon page
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• Calflora
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• Catalogo de Plantas y Líquenes de Colombia
• eFloras.org
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• Global Biodiversity Information Facility (GBIF)
• HOSTS - a Database of the World's Lepidopteran Hostplants
• IPNI (with links to POWO, WFO, and BHL)
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• USDA PLANTS database
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