Populus heterophylla Linnaeus. Swamp Cottonwood. Phen: Mar-Apr. Hab: Blackwater and brownwater swamp forests, tidal swamp forests, depression ponds, interdune ponds. Dist: CT west to MI, south to Panhandle FL and LA, scattered and irregular in distribution, absent from the Appalachians.

Origin/Endemic status: Native

Synonymy: = Ar, C, F, Fl2, FNA7, G, GW2, Il, K1, K3, K4, Mi, NE, NY, Pa, RAB, S, S13, Tat, Tn, Va, WH3

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: OBL
• Eastern Mountains and Piedmont: OBL
• Midwest: OBL
• Northcentral & Northeast: OBL

Heliophily: 6