Size: 1.5 - 2.0 inches wingspan

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Key ID features:  Males above, bright lemony yellow with unbroken black border.  Females above lighter yellow or cream, with less distinct black border. Below, central pearly "discal" spot in HW with single pinkish-brown ring, and few or no submarginal black or brown spots. HW below has black over-scaling, giving it a green cast.

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Similar species:  Clouded Sulphurs have heavier submarginal spots on HW below. Queen Alexandra's Sulphurs are larger, greener below, and usually lack pink discal spot-rim below.

 

Host plant: Many species in the pea family.​

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Habitat: Meadows, roadsides, dry steppe slopes and forest glades.

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Range: Mountain ranges throughout Oregon, except Coast Range.

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Season: early March to early November

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Abundance: Common

 

Conservation Status: Secure