| giant sumpweed | USDA PLANTS Symbol: CYXA U.S. Nativity: Native Habit: Forbs/Herbs |
| Cyclachaena xanthifolia (Nutt.) Fresen. |
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Taxonomic Rank: Magnoliopsida: Asterales: Asteraceae |
| Synonym(s): burweed marshelder, carelessweed, false ragweed, giant marshelder, horseweed, marshelder, rag sumpweed |
| Selected Images from Invasive.org | View All Images at Invasive.org |
 Plant(s); Steve Dewey, Utah State University, Bugwood.org Additional Resolutions & Image Usage |
 Plant(s); Steve Dewey, Utah State University, Bugwood.org Additional Resolutions & Image Usage |
 Plant(s); Jan Samanek, Phytosanitary Administration, Bugwood.org Additional Resolutions & Image Usage |
 Plant(s); Jan Samanek, Phytosanitary Administration, Bugwood.org Additional Resolutions & Image Usage |
 Plant(s); Jan Samanek, Phytosanitary Administration, Bugwood.org Additional Resolutions & Image Usage |
 Flower(s); Jan Samanek, Phytosanitary Administration, 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: |
