dcsimg
Bill Bouton   cc-by-sa-3.0

Colias alexandra (Alexandra's Sulphur) is a species of butterflies in the family Pieridae. They visit flowers of flytrap dogbane, cobwebby thistle, Soft Cinquefoil, and Lobb's buckwheat.

EOL has data for 14 attributes, including:

Known occurrences, collected specimens and observations of Alexandra's Sulphur. View this species on GBIF