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Myriophyllum
Family: Haloragaceae
Myriophyllum image
L S
  • Gleason & Cronquist
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Vascular plants of NE US and adjacent Canada
Fls unisexual, 4-merous, small, sessile in the axils of bracteal or foliage lvs, often aggregated into an emersed terminal spike; cal of 4 teeth, or obsolete; pet present or not; stamens 8 or 4 (even in one sp.); fr hard, ±4-lobed, eventually splitting into 4 mericarps; vegetatively plastic herbs, submersed in quiet water or rooting on muddy shores, usually with once-pinnately dissected lvs. 20+, cosmop.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
Species within checklist: Aquatic Invasive Plant Guide Species List
Myriophyllum aquaticum
Image of Myriophyllum aquaticum
Myriophyllum sibiricum
Image of Myriophyllum sibiricum
Myriophyllum spicatum
Image of Myriophyllum spicatum
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