purple loosestrife (Lythrum salicaria) |
UWSP Common Plants of Wisconsin |
||
|
purple loosestrife (Lythrum salicaria; LOOSESTRIFE FAMILY [Lythraceae]) Tall, stout perennial wetland herb with long showy purple-magenta flower spikes in late summer. Leaves opposite or in whorls of 3, stalkless, lance-shaped. Flowers 5-7 parted, ½” wide, aggregated into long terminal spikes. Often grows in dense stands from woody taproots and dense mats of fibrous rhizomes. Introduced as a garden flower, it has escaped and reproduced prolifically throughout most of temperate North America. It is illegal to sell, distribute, or cultivate purple loosestrife in Wisconsin and several other states. [087]
Copyright information: Use in any copyrighted document or any web site is prohibited without specific permission of the University of Wisconsin - Stevens Point Department of Biology. Please contact Webmaster for more information.
|