First record of Najas marina (Hydrocharitaceae) for Montana and an update on the North American distribution

Scott L. Freeman; Ian Pfingsten

USGS · 70226194

First record of Najas marina (Hydrocharitaceae) for Montana and an update on the North American distribution

Abstract

Three recent collections of Najas marina (spiny water-nymph) from Missoula County, Montana are documented and illustrated. These collections are the first records for Montana and for the Pacific Northwest region. The occurrence of N. marina in Montana reflects a significant northward expansion of this species in the Mountain West. The North American distribution of this species is also updated.

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Source-reported bounding extent: 5.61598581915534° to 50.958426723359935° latitude; -127.79296875° to -58.71093750000001° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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BibTeX RIS

Scott L. Freeman, Ian Pfingsten. 2021. First record of Najas marina (Hydrocharitaceae) for Montana and an update on the North American distribution. https://pubs.usgs.gov/publication/70226194

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