Download - Parrotfeather Myriophyllum aquaticum
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Parrotfeather Myriophyllum aquaticum
By: Natalie Bonitz
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Distribution
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FactsForms mats of vegetationDoesn’t spread into
deeper water Fish have a hard time
swimming through the mats
Adapted to water level changes
Washington listed as a quarantined plant
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Identification Bright green fir-tree-like; emergent leaves
and stemsLeaflets arranged in whorls (4-6) around the
stemLeaflets with feather-like leaf arrangement Dense mat of intertwined brownish stems
(rhizomes) in the waterReddish, feathery-leaved, limp, underwater
leaves may be presentWhite flowers
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In Flower
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Source Native to South America
Amazon River Introduced in the late 1800s
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Reproduction
All female plants
Perennial
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Control MethodsHard to controlHerbicides aren’t
very effective Not palatable to
fishMechanical
methods spread the rhizomes
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Resources http://www.ecy.wa.gov/programs/wq/plants/w
eeds/parrot.htmlhttp://www.ecy.wa.gov/programs/wq/plants/w
eeds/aqua003.htmlhttp://
boggycreekpondsupply.com/navitrolr-granular-aquatic-herbicide.html
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Questions?Uh OH!