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Sparganium fluctuans (Engelmann ex Morong) B.L. Robinson. Floating Bur-reed. Phen: Jul-Aug. Hab: Lake margins, streams, shores. Dist: NL west to BC, south to n. NJ, PA, MI, WI, MN, SK, AB, and WA.

ID notes:"Vegetative plants may be confused with S. angustifolium: the leaf width in S. fluctuans ranges from 3-11 mm , but is generally wider than 5 mm, whereas that of S. angustifolium ranges from 1.5-5 mm, but is typically less than 5 mm wide (Crow & Hellquist 2023).

Origin/Endemic status: Native

Synonymy: = AqW, C, F, FNA22, K3, K4, Mi, NE, NY, Pa

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Wetland Indicator Status:

  • Eastern Mountains and Piedmont: OBL
  • Great Plains: OBL
  • Midwest: OBL
  • Northcentral & Northeast: OBL

Heliophily: 8

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image of plant© Louis Imbeau, some rights reserved (CC BY), uploaded by Louis Imbeau source CC-BY | Original Image ⭷
image of plant© Rob Foster, some rights reserved (CC BY), uploaded by Rob Foster source CC-BY
image of plant© Jay Brasher, some rights reserved (CC BY), uploaded by Jay Brasher source CC-BY | Original Image ⭷
image of plant© Mathew Zappa, some rights reserved (CC BY), uploaded by Mathew Zappa source CC-BY
image of plant© Rob Foster, some rights reserved (CC BY), uploaded by Rob Foster source CC-BY
image of plant© Jay Brasher, some rights reserved (CC BY), uploaded by Jay Brasher source CC-BY | Original Image ⭷
image of plant© Quinten Wiegersma, some rights reserved (CC BY), uploaded by Quinten Wiegersma source CC-BY

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