Buckley's Beardtongue (Penstemon buckleyi Pennell)
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↑Links & External Resources
• Penstemon buckleyi (Buckley's beardtongue) | USDA PLANTS Database (About This Site)
• Buckley's Beardtongue | iNaturalist (About This Site)
• Penstemon buckleyi | Biota of North America Project (BONAP) (About This Site)
• Penstemon buckleyi Pennell | Plants of the World Online (POWO) (About This Site)
• Penstemon buckleyi | NatureServe Explorer (About This Site)
• Penstemon buckleyi | Flora of North America (About This Site)