Dig deeper at SERNEC, a consortium of southeastern herbaria.
Check out EDDMapS.org to see where this has been reported.
Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Saxifragales
WEAKLEY'S FLORA (11/30/12):
Myriophyllum spicatum
FAMILY
Haloragaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Myriophyllum spicatum
FAMILY
Haloragaceae
COMMON NAME:
Eurasian Water-milfoil
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USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_mysp2_001_lvd
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Leslie J. Mehrhoff, University of Connecticut, Bugwood.org bug_5273022
Month Unknown
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Steve Hurst, USDA NRCS PLANTS Database, Bugwood.org bug_5308029
Month Unknown
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Chris Evans, Illinois Wildlife Action Plan, Bugwood.org bug_5330057
Month Unknown
Stem diameter below inflorescence is up to 2x diameter of lower stem, per Weakley's Flora.
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Graves Lovell, Alabama Dept. of Conservation & Natural Resources, Bugwood.org bug_5400611
Month Unknown
Leaves well-developed, pinnately divided with filiform segments, per Weakley's Flora.
COMPARE
aquatic plants
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Leslie J. Mehrhoff, University of Connecticut, Bugwood.org bug_5447204
Month Unknown
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Leslie J. Mehrhoff, University of Connecticut, Bugwood.org bug_5447206
Month Unknown
Flowers/fruits in erect spikes emersed from water, per Weakley's Flora.