Guadalupe Beardtongue (Penstemon guadalupensis A. Heller)
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↑Links & External Resources
• Penstemon guadalupensis (Guadalupe beardtongue) | USDA PLANTS Database (About This Site)
• Guadalupe Penstemon | iNaturalist (About This Site)
• Penstemon guadalupensis | Biota of North America Project (BONAP) (About This Site)
• Penstemon guadalupensis A.Heller | Plants of the World Online (POWO) (About This Site)
• Penstemon guadalupensis | NatureServe Explorer (About This Site)
• Penstemon guadalupensis | Flora of North America (About This Site)