Purple Loosestrife

Douglas County Conservation District

SERVING LANDOWNERS IN DOUGLAS COUNTY COLORADO FOR OVER 56 YEARS

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Purple Loosestrife
Lythrum salicaria

A perennial with erect stems, often growing 6 to 8' tall, usually associated with moist or marshy sites.  Leaves are simple, entire, and opposite or whorled.  Lance-shaped leaves have smooth margins.  Rose-purple flowers having 5 to 7 petals arranged in long vertical racemes.

This introduced species often escapes to aquatic sites such as streambanks or shorelines of shallow ponds.