Columbian Blue

Supported by All

19 native plants
support it in the US

• Caterpillar hosts Plants its caterpillars eat Arrowleaf Buckwheat 1
• Nectar plants Plants whose flowers it visits Parsnipflower Buckwheat, Sulfur Buckwheat, Naked Buckwheat, Cushion Buckwheat 18

Range

Greener is more native, amber more introduced; paler is less certain. How this was decided