Rumex verticillatus Linnaeus. Section: Axillares. Swamp Dock. Phen: Apr-Jun; May-Jul. Hab: Tidal freshwater marshes and swamps, but also inland in disturbed areas. Dist: QC, ON, MN, and SD, south to s. FL and se. and c. TX.

Origin/Endemic status: Native

Synonymy: = Ar, Fl4, FNA5, GrPl, Il, Mi, NE, NY, S, S13, Tat, Tn, Tx, Va; < Rumex verticillatus L. – C, F, G, GW2, K1, K3, K4, Pa, RAB, W, WH3

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: FACW (taxonomic split from wetland indicator species)
• Eastern Mountains and Piedmont: OBL
• Great Plains: FACW (taxonomic split from wetland indicator species)
• Midwest: OBL (taxonomic split from wetland indicator species)
• Northcentral & Northeast: OBL (taxonomic split from wetland indicator species)

Heliophily: 7