Also called spiked loosestrife and purple lythrum.

Native to Eurasia and northwest Africa.  Invasive > learn+quiz Invasive > Global Invasive > in USA+Canada Invasive > report it! Invasive > in USA Invasive > in Michigan Biology and Biological Control of Purple Loosestrife (.pdf)

For kids!  This plant described in a USDA Forest Service coloring noxious weeds page.

In the 🇺🇸 USA, the USDA suggests those seeking a wet-tolerant plant with a long bloom season replace this plant with native alternatives swamp milkweed  Asclepias incarnata, sweet pepperbush  Clethra alnifolia, eastern purple coneflower  Echinacea purpurea, grass-leaved blazing star  Liatris pilosa, gayfeather  Liatris spicata, green-headed coneflower  Rudbeckia laciniata or New York ironweed  Vernonia novaboracensis. [1]

Uses by native peoples
(Ethnobotany database)

Learn more about purple loosestrife Lythrum salicaria

Best Control Practices BCP (Ontario) (.pdf) and its Technical Bulletin (.pdf) Biology and Biological Control (.pdf) Biological Control in Eastern USA (.pdf page 157)

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