Cardamine douglassii Britton. Phen: Late Feb-early Apr; Apr-May. Hab: Nutrient-rich, mesic forests, especially alluvial bottomlands, and in nutrient-rich seepages. Dist: NY, ON, and MN south to c. NC (in the drainages of the Neuse, Meherrin, and rarely Cape Fear rivers), sc. TN, AL, and MO. Material reported for SC is C. bulbosa.
Origin/Endemic status: Native
Synonymy: = Ar, C, F, FNA7, G, GW2, Il, K1, K3, K4, Mi, NE, NY, Pa, RAB, Tn, Va, Al-Shehbaz (1988a), Rollins (1993)