Sonora False Goldenaster (Heterotheca marginata Semple)
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• Heterotheca marginata (Sonora false goldenaster) | USDA PLANTS Database (About This Site)
• Heterotheca marginata | Biota of North America Project (BONAP) (About This Site)
• Heterotheca marginata Semple | Plants of the World Online (POWO) (About This Site)
• Heterotheca marginata | NatureServe Explorer (About This Site)
• Heterotheca marginata | Flora of North America (About This Site)