Persicaria coccinea (Muhlenberg) Greene. Section: Persicaria. Red-careless. Phen: Jun-Oct. Hab: Shores, streams, sluggish water. Dist: Throughout North America.

Origin/Endemic status: Native

Taxonomy Comments: See https://www.inaturalist.org/observations/58501860 for a discussion about the distinctiveness of this taxon.

Synonymy: = Il, NE, NY, Tx; = Persicaria amphibia (L.) Delarbre var. emersa (Michx.) J.C.Hickman – Mi; = Polygonum amphibium L. var. emersum Michx. – C, GW2, K1, NcTx, Mitchell & Dean (1978); < Persicaria amphibia (L.) Delarbre – Ar, Fl4, FNA5, K3, Pa, Tn, Va; < Persicaria emersa (Michx.) Small – S13; < Persicaria muhlenbergii (S.Watson) Small – S; < Polygonum amphibium L. – W; < Polygonum coccineum Muhl. ex Willd. – RAB, Tat, Horton (1972); > Polygonum coccineum Muhl. ex Willd. – G; > Polygonum coccineum Muhl. ex Willd. var. coccineum – F; > Polygonum coccineum Muhl. ex Willd. var. pratincola (Greene) Stanford – F; > Polygonum coccineum Muhl. ex Willd. var. rigidulum (E.Sheld.) Stanford – F; > Polygonum natans (Michx.) Eaton – G

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Wetland Indicator Status:

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