Iris versicolor Linnaeus. clade: Limniris. Northern Blue Flag, Larger Blue Flag, Poison Flag. Phen: May-Jul. Hab: Calcareous fens and marshes, mafic fens, tidal marshes and swamps, interdune ponds, shores. Dist: NL west to SK, south to VA, WV, OH, and MN.
Origin/Endemic status: Native
Synonymy: = C, FNA26, G, K1, K3, K4, Mi, NE, NY, Pa, S, Va, W; = Limniris versicolor (L.) Rodion. – Crespo, Martínez-Azorín, & Mavrodiev (2015); = n/a – Il
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