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.
Origin/Endemic status: Native
Synonymy: = C, F, FNA22, K3, K4, Mi, NE, NY, Pa
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