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A plus sign after a Latin name indicates that the species is further divided into varieties or subspecies. 
Your search found 10 taxa.
Common Name:
Climbing Fumitory, Allegheny Vine, Cliff-Harlequin
)
Common Name:
Wild Bleeding Heart
Similar to D. canadensis, except with longer tips on the outer petals, per Wildflowers of the Southern Mountains.
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Common Name:
Squirrel Corn
Similar to D. cucullaria, except that the spurs are rounded, per Wildflowers of the Southern Mountains.
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Common Name:
Dutchman's Britches
The flattened corolla is divided into 2 tapering spurs pointing upward, per Wildflowers of the Southern Mountains.
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Common Name:
Pale Corydalis, Rock Harlequin, Pink Corydalis, Tall Corydalis
Pedicels erect, petals pink with yellow tips, per Wildflowers of the Eastern United States.
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Common Name:
Yellow Fumitory, Yellow Harlequin, Short-spurred Corydalis
Upper petal has a toothed crest and the corolla has a short spur, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.
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Common Name:
Fumitory, Earthsmoke
Corolla purplish, crimson at the tip; one petal with a spur at the base, per Guide to the Wildflowers of SC.
Your search found 10 taxa. You are on page PAGE 1 out of 1 pages.