Myriophyllum farwellii Morong. Subgenus: Brachytheca. Section: Tessaronia. Subsection: Spondylastrum. Farwell's Water-milfoil. Phen: Jun-Aug. Hab: Submersed in ponds, lakes, and slow streams. Dist: NS and QC and MB south to NY (Long Island), ne. PA, s. WI, and c. MN.
Origin/Endemic status: Native
Synonymy ⓘ: = C, F, FNA10, G, K3, K4, Mi, NE, NY, Pa
Wetland Indicator Status:
Heliophily ⓘ: 9
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