Rumex triangulivalvis (Danser) Rechinger f.. Section: Axillares. Willowleaf Dock. Phen: Apr-Jun. Hab: Streambanks, ponds, marshes, sloughs, also disturbed areas. Dist: Throughout North America, south to WV, DE, PA, KY, western states, and n. Mexico (CHH, SLP).

Origin/Endemic status: Native

Synonymy: = FNA5, Il, K3, K4, Mex, Mi, NE, NY; = Rumex salicifolius Weinm. var. triangulivalvis (Danser) C.L.Hitchc. – C; < Rumex mexicanus Meisn. – F, G, GrPl, Tat, Tx; < Rumex salicifolius Weinm. – S13; < Rumex salicifolius Weinm. var. mexicanus (Meisn.) C.L.Hitchc. – K1; > Rumex triangulivalvis (Danser) Rech.f. var. mexicanus (Meisn.) C.L.Hitchc. – Pa

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Wetland Indicator Status:

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

Heliophily: 8