Justicia americana (Linnaeus) Vahl. American Water-willow. Phen: (Apr-) Jun-Oct. Hab: River and stream beds, in shallow water, often rooted in rocky shallows. Dist: W. QC west to s. MI and NE, south to sw. GA, Panhandle FL, and s. TX; COA and CHH.

Origin/Endemic status: Native

Synonymy: = Ar, C, Fl6, GrPl, GW2, Il, K1, K3, K4, Mi, Mo2, NcTx, NE, NY, Ok, Pa, RAB, Tn, Tx, Va, W, WH3, WV, Daniel (2013), Long (1970), Wasshausen (1998); = Dianthera americana L. – S; > Justicia americana (L.) Vahl var. americana – F, G; > Justicia americana (L.) Vahl var. subcoriacea Fernald – F, G; > Justicia mortuifluminis Fernald – F

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