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This species is apparently a rather recent introduction to North America, now widespread in e. North America. Haynes (1979) reported that it is becoming more abundant in e. 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Molenbrock","license":"Public domain","license_url":"https://commons.wikimedia.org/wiki/Commons:Public_domain","source_url":"https://commons.wikimedia.org/wiki/File:Najas_minor_NRCS_(original).jpg","changes":"Wikimedia thumbnail; no crop or retouching","kind":"photo"}]}