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Rydberg's Thistle (Cirsium rydbergii Petr.)

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↑Range - Expand

LegendColor
Native
Native or Not Present

This map is based on our research. We have checked its accuracy to Level 3 ecoregions. Although this plant occurs somewhere in each of these regions, it may only occur in a small part of some or all of them.

• Cirsium rydbergii (Rydberg's thistle) | USDA PLANTS Database (About This Site)

• Rydberg's Thistle | iNaturalist (About This Site)

• Cirsium rydbergii | Biota of North America Project (BONAP) (About This Site)

• Cirsium rydbergii Petr. | Plants of the World Online (POWO) (About This Site)

• Cirsium rydbergii | NatureServe Explorer (About This Site)

• Cirsium rydbergii | Flora of North America (About This Site)

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