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Sagittaria platyphylla (Engelmann) J.G. Smith. clade: Graminea Group, Platyphylla Complex. Delta Arrowhead. Phen: Jun-Sep (-Oct). Hab: Marshes, ditches, farm ponds, pondcypress wetlands, canals. Dist: VA, OH, IL, MO, and OK, south to FL, TX, and Mexico. The distribution of this species is primarily in the Mississippi drainage; occurrences east of the Appalachians may be introduced, either by humans or by waterfowl. First reported for VA by Wieboldt et al. (1998). Reported for c. FL (Orange County) by Dalager (2022, who considers it as introduced there and likely via the aquatic plant industry.

Origin/Endemic status: Native

Synonymy: = AqW, Ar, ETx1, F, FNA22, Il, K1, K3, K4, Meso6, Mo1, NcTx, Ok, Tx, Va, WH3, Keener (2005), Sorrie, Keener, & Edwards (2007), Wooten (1973); = n/a – Pa; = Sagittaria graminea Michx. var. platyphylla Engelm. – G, GrPl, RAB, Bogin (1955); < Sagittaria graminea Michx. var. graminea – C; > Sagittaria mohrii J.G.Sm. – S, S13; > Sagittaria platyphylla (Engelm.) J.G.Sm. – S, S13

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Wetland Indicator Status:

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

Heliophily ?: 8

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image of plant© Aidan Campos source | Original Image ⭷
image of plant© Aidan Campos source | Original Image ⭷
image of plant© Sonnia Hill | Original Image ⭷
image of plant© Aidan Campos source | Original Image ⭷
image of plant© Mac H. Alford | Original Image ⭷
image of plant© Mac H. Alford | Original Image ⭷
image of plant© Mac H. Alford | Original Image ⭷
image of plant© Mac H. Alford | Original Image ⭷
image of plant© Mac H. Alford | Original Image ⭷

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