Rumex altissimus Alph. Wood. Section: Axillares. Pale Dock, Tall Dock, Peachleaf Dock. Phen: Mar-Jun (sometimes later); May-Jul (sometimes later). Hab: Bottomlands, swamps, marshes, roadsides, disturbed areas. Dist: ME and MN south to GA, AL, TX, AZ, and n. Mexico (CHH, SLP, SON).

Origin/Endemic status: Native

Synonymy: = Ar, C, F, FNA5, G, GrPl, GW2, Il, K1, K3, K4, Mex, Mi, NcTx, NE, NY, Pa, RAB, S, S13, Tn, Tx, Va, W, WV; = n/a – Tat

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: FACW
• Eastern Mountains and Piedmont: FACW
• Great Plains: FAC
• Midwest: FACW
• Northcentral & Northeast: FACW

Heliophily: 7