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VIRTUAL FIELD GUIDE >> Noxious Weed List >> Parrotfeather Milfoil |
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Parrotfeather Milfoil (Myriophyllum aquaticum)
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 Parrotfeather Milfoil plant & roots. |
•Native to South America •Found at water’s edge in rivers and canals •New infestations from plant fragments and rhizomes; all female plants •Interferes with water movement, prime mosquito larvae habitat •Found along Potlatch River and irrigation canals in southwestern Idaho •Bright green, emergent leaves and stems. •Leaflets arranged in whorls (4-6) around the stem. •Each leaflet has a feather-like pattern. •Dense mat of intertwined brownish stems (rhizomes) in the water. •Reddish, feathery-leaved, limp, underwater leaves may be present |
 Parrotfeather Milfoil on irrigation canal. |
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