*Myriophyllum spicatum Linnaeus. Subgenus: Myriophyllum. Section: Myriophyllum. Subsection: Myriophyllum. Eurasian Water-milfoil. Phen: Apr-Oct. Hab: Ponds and impoundments. Dist: Native of Eurasia. Easily confused with M. sibiricum, M. spicatum is an introduced species, now widespread in e. United States. Reported for SC by Hill & Horn (1997).
Origin/Endemic status: Eurasia
Synonymy: = Ar, C, Fl2, FNA10, GW2, Il, K1, K3, K4, Mi, NcTx, NE, NY, Pa, Tn, Va, W, WH3, Aiken (1981), Crow & Hellquist (2000a), Moody & Les (2010); = n/a – RAB, Tat; >< Myriophyllum spicatum L. var. exalbescens – Tx, misapplied
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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