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Potamogeton richardsonii (Bennett) Rydberg. Richardson Pondweed. Phen: Jun-Aug (-Sep). Hab: Slow-moving, calcareous waters. Dist: NL (Labrador) west to AK, south to DE, MD, PA, n. OH, n. IN, n. IL, IA, NE, NM, AZ, and CA.

Origin/Endemic status: Native

Synonymy: = AqW, C, F, FNA22, G, GrPl, Il, K1, K3, K4, Mi, NE, NY, Tat, Wiegleb & Kaplan (1998); < Potamogeton perfoliatus L. – Pa

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Wetland Indicator Status:

  • Eastern Mountains and Piedmont: OBL
  • Great Plains: OBL
  • Midwest: OBL
  • Northcentral & Northeast: OBL

Heliophily: 8

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image of plant© Juvia Heuchert, some rights reserved (CC BY), uploaded by Juvia Heuchert source CC-BY | Original Image ⭷ Warning: was NOT research grade.

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