Shasta County Arnica (Arnica venosa H.M. Hall)
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↑Links & External Resources
• Arnica venosa (Shasta County arnica) | USDA PLANTS Database (About This Site)
• Shasta County Arnica | iNaturalist (About This Site)
• Arnica venosa | Biota of North America Project (BONAP) (About This Site)
• Arnica venosa H.M.Hall | Plants of the World Online (POWO) (About This Site)