| ragweed parthenium | USDA PLANTS Symbol: PAHY U.S. Nativity: Exotic Habit: Forbs/Herbs |
| Parthenium hysterophorus L. |
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Taxonomic Rank: Magnoliopsida: Asterales: Asteraceae |
| Synonym(s): Santa Maria feverfew, ragweed parthenium, whitetop weed |
| Selected Images from Invasive.org | View All Images at Invasive.org |
 Plant(s); Habit Forest and Kim Starr, Starr Environmental, Bugwood.org Additional Resolutions & Image Usage |
 Plant(s); Flowering habit with anunu Forest and Kim Starr, Starr Environmental, Bugwood.org Additional Resolutions & Image Usage |
 Plant(s); Charles T. Bryson, USDA Agricultural Research Service, Bugwood.org Additional Resolutions & Image Usage |
 Flower(s); Charles T. Bryson, USDA Agricultural Research Service, Bugwood.org Additional Resolutions & Image Usage |
| EDDMapS Distribution: This map is incomplete and is based only on current site and county level reports made by experts and records obtained from USDA Plants Database. For more information, visit www.eddmaps.org |
 State List This map identifies those states that list this species on their invasive species list or law. 
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| Invasive Listing Sources: |
| California Invasive Plant Council |
