![]() Flowers vary, too they can be shaped like cups, saucers, or stars and come in shades of white, yellow, pink, and purple. Types vary from stately plants suitable for borders to ones that serve as creeping groundcovers. MDARD Weed Risk Assessment for Purple Loosestrife (Lythrum salicaria) - This document evaluates the invasive potential of the plant species using information based on establishment, spread and potential to cause harm. Loosestrife ( Lysimachia spp.) is a large plant family with more than 180 species of herbaceous and evergreen perennials. Purple loosestrife (Lythrum salicaria L.) is an invasive, herbaceous plant, frequently found in wetlands, creating monoculture stands, resulting in intensive management strategies in central New. of the Interior, Fish and Wildlife Service. Purple Loosestrife Invasive Species Alert - Printable PDF Spread, impact, and control of purple loosestrife (Lythrum salicaria) in North American wetlands. Other Common Names: Purple lythrum, rainbow weed, salicaria, spiked loosestrife. The plant blossoms every July through September. ![]() This can lead to a reduction in plant diversity, which reduces habitat value to wildlife. Purple loosestrife is an erect perennial herb standing three to ten feet tall. Local Concern: Given the right conditions, purple loosestrife can rapidly establish and replace native vegetation. Distribution: Purple loosestrife has been introduced to every state except Florida. ![]() It prefers full sun, but can tolerate shade. While seeds can germinate in water, establishment is much more successful in moist substrate that’s not flooded. A mature plant can develop into a large clump of stems up to five feet in diameter. Habitat: Purple loosestrife thrives along roadsides and in wetlands. Purple loosestrife is an erect perennial herb that usually grows two to six feet tall. It has opposite leaves that are long and narrow with pointed tips, smooth edges, and heart-shaped bases that connect directly to the plant stem with no leaf stalks. It can grow anywhere from 4 to 8 feet tall. SERIES 31 Episode 34 Gardening Australia suggests you consult your local authorities or go to Weeds in Australia to check the weed potential of any plants for your particular area. Purple loosestrife is an erect, perennial herb, with a candelabrum of flowering branches at the top of the plant. Photo courtesy of Steve Dewey, Utah State University, . We profile the Purple Loosestrife an attractive perennial plant that is native to Europe, Africa and eastern Australia. Photo courtesy of Linda Wilson, University of Idaho,. Magenta flower spikes with 5-7 petals per flower are present for most of the summer.Leaves are arranged in pairs or whorls.Perennial herb with a woody, square stem covered in downy hair. The showy purple pink flowers appear from mid to late summer and are followed by capsules filled with thousands of tiny seeds that are easily dispersed by wind.Or - download the MISIN smartphone app and report from your phone - /tools/apps/#home ![]() Use the Midwest Invasive Species Information Network (MISIN) online reporting tool ![]()
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