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Drew Avery   cc-by

Calamagrostis (Reedgrass) is a genus of perennial grass in the family true grasses. They are native to Greenland, Saint-Pierre Et Miquelon, Canada, The Contiguous United States, Western North America, North America, Alaska, and Hawaii.

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EOL has data for 7 attributes, including:

Known occurrences, collected specimens and observations of reedgrass. View this species on GBIF