- BND: Queen Alexandra's Sulphur; Colias alexandra W. H. Edwards, 1863
- BNA: Queen Alexandra's Sulphur; Colias alexandra
- NDC: COAL
- Habitat: Badlands; rarely encountered in ND
- Larval food: Wild legumes, incl. Astragalus, Hedysarum, Thermopsis
- Adult flight: Phenology unclear, June certainly, possibly also August
- References: Royer 77, Ferris & Brown 161, Scott 195
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