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Najas canadensis Michaux. Subgenus: Caulinia. Section: Americanae. Northern Naiad. Phen: Jul-Aug. Hab: Lakes, rivers, impoundments. Dist: ME and MN south to VA, OH, and IN; in the west ID, WA, and OR (at least); also in n. Europe.

Origin/Endemic status: Native

Synonymy: = AqW; = n/a – RAB; = Najas muenscheri R.T.Clausen – F; < Naias flexilis – S, orthographic variant; > Najas canadensis Michx. – NY; < Najas flexilis (Willd.) Rostk. & Schmidt – C, G, Il, K3, Pa, Tat, Va, W, WV; >< Najas guadalupensis (Spreng.) Magnus ssp. guadalupensis – FNA22, Haynes (1979); > Najas guadalupensis (Spreng.) Magnus ssp. muenscheri (R.T.Clausen) R.R.Haynes & Hellq. – FNA22, Haynes (1979); > Najas muenscheri R.T.Clausen – NY

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: OBL (name change)
  • Eastern Mountains and Piedmont: OBL (name change)
  • 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: 8

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image of plant© Étienne Léveillé-Bourret, some rights reserved (CC BY-NC), uploaded by Étienne Léveillé-Bourret source CC-BY-NC, permission granted to NCBG | Original Image ⭷ Warning: was NOT research grade.
image of plant© Étienne Léveillé-Bourret, some rights reserved (CC BY-NC), uploaded by Étienne Léveillé-Bourret source CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Étienne Léveillé-Bourret, some rights reserved (CC BY-NC), uploaded by Étienne Léveillé-Bourret source CC-BY-NC, permission granted to NCBG | Original Image ⭷ Warning: was NOT research grade.

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