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

Links to other floras: >< Najas guadalupensis ssp. guadalupensis - FNA22; > Najas guadalupensis ssp. muenscheri - FNA22

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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