Stoneroot (Collinsonia verticillata Baldw.)
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↑Links & External Resources
• Collinsonia verticillata (stoneroot) | USDA PLANTS Database (About This Site)
• Collinsonia verticillata | Biota of North America Project (BONAP) (About This Site)
• Collinsonia verticillata Baldwin ex Elliott | Plants of the World Online (POWO) (About This Site)
• Collinsonia verticillata | NatureServe Explorer (About This Site)