PURPLE LOOSESTRIFE.
Lythrum salicaria L.
Purple Loosestrife is a perennial, grows to 8' that prefers damp soil. Leaves are simple, lance-shaped, have smooth margins and are opposite or whorled. Stems branch, ending in flower stalks. Flowers are rose-purple in color with long vertical recemes having 5-7 petals and numerous stamens. Roots are large and adapted to aquatic sites. Can grow dense enough to impede water flow in canals or ditches
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Photos and information adapted from "Weeds of the West" by Tom Whitson
