Corydalis flavula (Rafinesque) A.P. de Candolle. Yellow Fumewort, Yellow Harlequin, Short-spurred Corydalis. Phen: Mar-May; May-Jun. Hab: Rich moist forests, especially alluvial forests, also in glades and on outcrops over mafic rocks (such as greenstone). Dist: S. CT, NY, and s. ON west to SD, south to NC, AL, LA, and OK.

Origin/Endemic status: Native

Synonymy: = Ar, C, F, FNA3, G, GrPl, Il, K1, K3, K4, Mi, NE, NY, Pa, RAB, Tat, Tn, Va, W, WH3, WV, Ownbey (1947); = Capnoides flavulum (Raf.) Kuntze – S, S13

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: FACU
• Eastern Mountains and Piedmont: FACU
• Great Plains: FACU
• Midwest: FACU
• Northcentral & Northeast: FACU

Heliophily: 4