Soft Thistle (Cirsium carolinianum (Walter) Fernald & B.G. Schub.)
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↑Links & External Resources
• Cirsium carolinianum (soft thistle) | USDA PLANTS Database (About This Site)
• Cirsium carolinianum | Biota of North America Project (BONAP) (About This Site)
• Cirsium carolinianum (Walter) Fernald & B.G.Schub. | Plants of the World Online (POWO) (About This Site)
• Cirsium carolinianum | NatureServe Explorer (About This Site)
• Cirsium carolinianum | Flora of North America (About This Site)