Sparganium fluctuans (Engelmann ex Morong) B.L. Robinson. Common name: Floating Bur-reed. Phenology: Jul-Aug. Habitat: Lake margins, streams, shores. Distribution: 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, Can, F, FNA22, K4, Mi, NE, NY, Pa. Basionym: Sparganium androcladum (Engelm.) Morong var. fluctuans (Engelm.) Morong 1888
Links to other floras: = Sparganium fluctuans - FNA22
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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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Horticultural Information
No horticultural data found for this taxon.