Myriophyllum verticillatum Linnaeus. Subgenus: Myriophyllum. Section: Myriophyllum. Subsection: Isophylleae. Whorled Water-milfoil. Phen: Jul-Oct. Hab: Quiet waters. Dist: A circumboreal species, south in North America to DE, MD, n. WV, IN, NE, TX, and CA.
Origin/Endemic status: Native
Synonymy ⓘ: = C, FNA10, G, GrPl, K1, K3, K4, Mi, NcTx, NE, NY, Pa, S13, Tx, Aiken (1981), Crow & Hellquist (2000a), Moody & Les (2010); > Myriophyllum verticillatum L. var. intermedium W.D.J.Koch – F; > Myriophyllum verticillatum L. var. pectinatum Wallr. – F, Il, Tat
Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: OBL
- Eastern Mountains and Piedmont: OBL
- Great Plains: OBL
- Midwest: OBL
- Northcentral & Northeast: OBL
Heliophily ⓘ: 9
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