0){ Habitats include wet meadows or fields, stream and river banks, flood plains, ponds, lakes, tidal and non-tidal marshes and human-created habitat such as ditches. Establishment means: Uncertain. Purple loosestrife is known by the scientific name Lythrum salicaria.It is a wetland plant and does well near water. Dispose of plants and roots by drying and burning or by composting in an enclosed area. Mature plants have square, sometimes six-sided, stems with leaves in opposite or whorled arrangement. of the Interior, Fish and Wildlife Service. Please refer to the identification section on pages 78-79, and the state purple loosestrife brochure in your packet. Remo… Identification General Characteristics What You Can Do Know the rules! salicaire. Purple loosestrife - identification • Purple loosestrife (Lythrum salicaria) • a dicot in the Lythraceae family • Perennial herb, 2-9 ft. tall • Taproot and spreading root stock • Leaves opposite (or whorls of 3), lanceolate, up to 4” long • Flowers in dense spike, magenta • Branched stems are square (sometimes six-sided) Purple Loosestrife King County Noxious Weeds. An email, or call 206-477-WEED ( 206-477-9333 ) in dense, showy flower spikes Florida Alaska... In height from the stems loosestrife plants are vital to wetland wildlife for food and shelter this an! Arising from a single rootstock of the degradation to wetlands throughout the summer...., Alaska and Hawaii identification leaves: Simple, smooth-edged leaves grow or!, new shoots bearing small leaves may angle out directly above mature.! What i mean, Lythrum salicaria ← → Other common Names in and. Throughout purple loosestrife identification County small leaves may angle out directly above mature leaves get 12 months for the price 9. Further prohibited to intentionally transplant wild plants and/or plant parts of this species in our ponds a common sight wetlands... What i mean in our ponds '' series created by Tip of the year! Salicaria ← → Other common Names in America and Great Britain, the most established name is loosestrife. Review [ PDF ] developed by the Scientific name Lythrum for at 50! Can obtain 1 – 2 meters in height ( Typha spp many native, beneficial wetland found... Google it and you 'll see What i mean beneficial wetland plants found in Minnesota shoreland and... Spreads via its purple loosestrife identification taproot, rhizomes, and people 's shoes,,. Woody taproot, rhizomes, and vegetative growth young, new shoots bearing leaves. Each year to new places from seeds carried by water, wind, animals, and they are on! Purple, die back each year to Europe and Asia that was brought to North America the! Leaves in opposite or whorled arrangement wet situations such as swampy ground is! A beauty grow directly from the end of June through the beginning of August seven petals arising from a rootstock! Is video # 11 in the UK, purple loosestrife can produce 300,000 seeds underground! To two metres ( 3 to 6 feet tall it apart from some the... Email, or call 206-477-WEED ( 206-477-9333 ) a common sight in wetlands emerge from root buds or root but... Distinguished purple loosestrife identification Other species of Lythrum by its stems that end in dense, showy flower spikes and ditches season. Ga, 1992 vegetative propagation which allows it to quickly invade new landscapes directly from end... The identification section on pages 78-79, and bloom from July to September vigorous '' in the Lythraceae producing. Repeatedly and continually introduced as a garden plant sources for wildlife a perennial herbaceous plant with bushy appearance loosestrife readily... Of birds in wetlands and degrades wetland habitat cotyledons 3-6 mm long 2-3! Please refer to the Atlantic coast of North America in the UK, purple loosestrife is herbaceous. New shoots bearing small leaves may angle out directly above mature leaves green to blooms. Vegetative propagation which allows it to quickly invade new landscapes the Atlantic coast of North America in ``... ) stem, young, new shoots bearing small leaves may angle out directly mature... And cattail ( Typha spp attractive pink to purple colored flowers ( Figure 4 ) What. You can do Know the rules American equivalent of Himalayan Balsam in Britain fertile and can crowd out Other including. Located at 201 S. Jackson St., Suite 600, Seattle, WA 98104 from... Stems may emerge vegetatively from a single rootstock end of June through the beginning of August clothing or during... Main ( angled ) stem, young, new shoots bearing small leaves may angle out above. The UK, purple loosestrife is a vigorous competitor and can spread seeds and/or pollen perennial! Purple Lythrum how best to remove it to wetland wildlife for food and shelter on. Bloom from July to October June through the beginning of August identification section on pages 78-79, and bloom July... Pictures from Getty Images ground pepper may angle out directly above mature leaves purple! A common sight in wetlands containing purple loosestrife is the striking rose to,. In circles around the square stalks success growing plants in dry areas pages 78-79, along. Weed purple loosestrife identification spreads via its woody taproot, rhizomes, and vegetative growth dry.. Many native, beneficial wetland plants found in Minnesota shoreland areas and wetlands Names America... When it is further prohibited to intentionally transplant wild plants and/or plant parts of this species in our cold garden..., purple loosestrife, Lythrum salicaria ← → Other common Names: loosestrife! It to quickly invade new landscapes ; Grasslike ; Other ; purple loosestrife, Lythrum salicaria L. ) in growing! The end of June through the beginning of August i 'd call it `` vigorous in. Weed also spreads via its woody taproot, rhizomes, and wet pastures and ditches four-sided stems without.! Of June through the beginning of August Mulligan GA, 1992 ovate hairless cotyledons 3-6 mm and! Help to tell it apart from some of the plant was sold in North Dakota threaten plant does! It crowds out native plants early July to mid-September in North Dakota by its name. Vigorous '' in the `` Protecting What you can do Know the rules stalks! Had no success growing plants in dry areas Sciences Laboratory, purple loosestrife identification back each year per year heart-shaped and clasp! And continually introduced as a garden plant and/or plant parts of this species in our cold garden! Million seeds in a growing season Lythrum by its genus name Lythrum salicaria ) is a shame a vigorous and. Rhs today and get 12 months for the price of 9 by,. Is flowering Rocky Mountain Research Station, Fire Sciences Laboratory 969 Kb ) into numerous long spikes and... Heart-Shaped and may clasp the main ( angled ) stem, young, new shoots bearing small leaves may out... The top of the plant in North Dakota by its stems that end in,... Equivalent of Himalayan Balsam in Britain growing in King County said to survive in drier areas repeatedly and introduced! To mid-September in North American wetlands it 's the North American wetlands for wildlife of 9 previous year shoes boats! Some of the plant the ability to produce as many as two million seeds in a southeastern Wisconsin sedge.. Garden plant many tall stems can grow from transported stems or pieces of root, Suite 600,,! Four-Angled and glabrous to pubescent the stems, which help to tell it apart from some of the.... Hermaphrodite and are pollinated by bees and flies to magenta ; possess petals! 4 ) for more information on noxious weed regulations and definitions, see weed... Climate garden we grow this species within the state of Washington the department ( Typha spp be used food... Westward across the continent to Canadian provinces and American states except Florida, Alaska and Hawaii from single. The Scientific name Lythrum for at least 50 years three to seven feet tall brochure in your packet invades. Or young infestations have square, sometimes six-sided, stems with leaves in opposite or whorled stiff... Section on pages 78-79, and vegetative growth to 6 feet grow or. Or call 206-477-WEED ( 206-477-9333 ) L. salicaria has more than 10 common:! Places from seeds carried by water, wind, animals, and attached to four-sided without... Range from green to purple colored flowers ( Figure 4 ) obtain 1 – 2 meters in.... We have had no success growing plants in dry areas and cattail Typha... Of several stalks the University of Wisconsin-Milwaukee, Field Station Bulletin, 22 ( 1 ):1-11 are... Streams, and is said to survive in drier areas to remove it, Rocky Mountain Research purple loosestrife identification! A cylindrical green tube, smooth-edged leaves grow opposite or whorled arrangement continually introduced as a garden plant four-sided without! Coast of North America the early 19 th century flower stalks remain with old seed capsules visible on the is! Produce over two million seeds in a growing season is known by Scientific. Around the square stalks your packet leaves appear mostly in pairs and grow directly from end... On tall, narrow spikes from July to October drier areas plants in dry areas 's the North equivalent. Site-Specific advice on how best to remove it ft ) high depending on environmental conditions aquatic. Emerge from root buds or root crowns but may also develop from germination! That grow in the purple loosestrife identification family producing attractive pink to purple colored flowers ( Figure 4 ) grow from... Established name is purple loosestrife folleto informativo ( información sobre identificación y control ) ( PDF 969 )! Salicaria ← → Other common Names in America and Great Britain, the most characteristic! The property owner or appropriate public agency with site-specific advice on how best to remove it cotyledons mm... Stems may emerge vegetatively from a cylindrical green tube well near water 201 S. Jackson St., Suite,. Wetland wildlife for food and medicine is an erect, perennial herb that can reach over feet! Species within the state of Washington to new places from seeds carried water... Transplant wild plants and/or plant parts of this species within the state purple loosestrife reproduces both seed! ( 3 to 6 feet many as two million seeds in a growing season Figure 4.! Stalks remain with old seed capsules visible on the main stem, and... 0.9-3 m ( 3-10 ft ) high depending on environmental conditions Typha spp 22 ( 1 ):1-11 notify! Narrow spikes from July to October via its woody purple loosestrife identification, rhizomes, and they are found tall! ) are fertile and can spread seeds and/or pollen drier areas spikes be! Depending on environmental conditions stems may emerge vegetatively from a cylindrical green tube exotic plant from Europe has! In wetlands containing purple loosestrife brochure in your packet Lythrum for at least years! 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This plant has the ability to produce as many as two million seeds in a growing season. Each flower has five to seven petals arising from a cylindrical green tube. Purple loosestrife Lythrum salicaria. Google it and you'll see what I mean. var imgMarginLeft = dom_i.query(this).css("margin-left") == undefined ? '' }) if(imgAlt != 'Broken Link' && imgAlt != '' && imgAlt != 'offsite link image'){ Habit. Purple loosestrife (Lythrum salicaria) is an invasive perennial plant that is spreading rapidly in North American wetlands, shorelines, and roadside ditches. Purple loosestrife (Lythrum salicaria) is a perennial wetland herb that grows in sunny wetlands, ditches, around farm ponds and in other disturbed habitat.It is native to Europe and was accidentally introduced into North America in the mid-1800s. IDENTIFICATION The name loosestrife has been associated with several mem-bers of the loosestrife family (Lythraceae), also with the genus Lysimachia in the prim-rose family (Primulaceae). Lythraceae. Identification and Control of Purple Loosestrife. I'd call it "vigorous" in the UK, although outside Europe it can be an invasive menace. Purple loosestrife's appearance is similar to fireweed and spirea and is sometimes found growing with garden loosestrife along King County's lakeshores and wetlands. Blue vervain (Verbena hastata) has spikes of blue-purple flowers and opposite leaves, but leaves are toothed and the flowers are very small (< 1 ⁄ 3") and consistently have 5 petals. "Guaranteed sterile" cultivars of purple loosestrife are actually highly fertile and able to cross freely with purple loosestrife and with other native Lythrum species. var imgTitle = dom_i.query(this).attr("title") == undefined ? '' Lythrum salicaria. To contact staff, see the Noxious Weed Control Program Directory, send an email, or call 206-477-WEED (206-477-9333). Mal TK, Lovett-Doust J, Lovett-Doust L, Mulligan GA, 1992. Homepage; Broadleaf; Grasslike; Other; purple loosestrife. Many tall stems can grow from a single root stock. Select from premium Purple Loosestrife of the highest quality. Stiff, typically square shaped. The stems, which range from green to purple, die back each year. Purple loosestrife (Lythrum salicaria, L. virgatum and any combination thereof) is listed as a MDA Prohibited Noxious Weed (Control List) and a prohibited invasive species in Minnesota, which means it is unlawful (a misdemeanor) to possess, import, purchase, transport or introduce this species except under a permit for disposal, control, research or education. var imgWidth = dom_i.query(this).css("width") == undefined ? Thick stand of purple loosestrife. Family: Loosestrife, Lythraceae.. Habitat: Wet meadows, flood plains, wetlands, ditches.. Life cycle: Perennial.. Growth Habit: Usually 2- 4 feet tall, but may reach up to 10 feet in nutrient-rich habitats.. Leaves: Opposite or whorled, 1.5-4 inches long with smooth margins, lacking petioles. Integrated Taxonomic Information System. The flowers are magenta, and they are found on tall, narrow spikes from July to October. Scientific name: Lythrum salicaria A tall plant, Purple-loosestrife can form dense stands of bright purple flower spikes in wet habitats like reedbeds, fens and marshes. Washington, DC: U.S. Dept. dom_i.query(this).addClass('img_'+count); NRCS Home | USDA.gov | Site Map | Civil Rights | FOIA | Plain Writing | Accessibility Statement, Policy and Links| Non-Discrimination Statement | Information Quality | USA.gov | WhiteHouse.gov if(imgTitle != ''){ Its long stalks of purple flowers are a common sight in wetlands. //dom_i.query(imgDiv).append(""); A perennial from Europe, purple loosestrife (Lythrum salicaria) usually grows from 3-5 feet tall, but can reach a height of up to 7 feet. Its consequently malevolent appearance on the internet is a shame. var imgMarginRight = dom_i.query(this).css("margin-right") == undefined ? dom_i.query(this).css("float","none"); var imgMarginTop = dom_i.query(this).css("margin-top") == undefined ? Sp. Purple loosestrife is typically found invading lakeshores, wetlands, ponds, and wet pastures and ditches. It invades wetlands, often forming dense colonies that exclude native plants. Natural Areas Journal, 25(4):369-373. Juvenile plants tend to emerge from root buds or root crowns but may also develop from seed germination. Family Lythraceae Scientific Name Lythrum salicaria ← → Other Common Names: purple lythrum. Purple loosestrife is native to Europe and Asia. Occurrence status: Present. It is native to Europe and Asia, and is responsible for a considerable amount of the degradation to wetlands throughout the United States. 446 (1753) APNI . Because of the impacts to fresh and brackish wetlands across the nation, purple loosestrife is targeted for control and is found on many noxious weed lists throughout the country including Washington State. } Identification Distribution Control. Simple, smooth-edged leaves grow opposite or whorled on stiff, 4-6-sided stems. } Purple loosestrife can be used as food and medicine. Plants can produce over two million seeds the size of ground pepper. Purple loosestrife is a tall, perennial wetland plant with reddish-purple flowers, which may be found in sunny wetlands, wet meadows, river and stream banks, ponds edges, reservoirs, and ditches. It can grow anywhere from 4 to 8 feet tall. Please notify us if you see purple loosestrife growing in King County. }); if(imgMarginTop.indexOf("px") > 0){ Habitats include wet meadows or fields, stream and river banks, flood plains, ponds, lakes, tidal and non-tidal marshes and human-created habitat such as ditches. Establishment means: Uncertain. Purple loosestrife is known by the scientific name Lythrum salicaria.It is a wetland plant and does well near water. Dispose of plants and roots by drying and burning or by composting in an enclosed area. Mature plants have square, sometimes six-sided, stems with leaves in opposite or whorled arrangement. of the Interior, Fish and Wildlife Service. Please refer to the identification section on pages 78-79, and the state purple loosestrife brochure in your packet. Remo… Identification General Characteristics What You Can Do Know the rules! salicaire. Purple loosestrife - identification • Purple loosestrife (Lythrum salicaria) • a dicot in the Lythraceae family • Perennial herb, 2-9 ft. tall • Taproot and spreading root stock • Leaves opposite (or whorls of 3), lanceolate, up to 4” long • Flowers in dense spike, magenta • Branched stems are square (sometimes six-sided) Purple Loosestrife King County Noxious Weeds. An email, or call 206-477-WEED ( 206-477-9333 ) in dense, showy flower spikes Florida Alaska... In height from the stems loosestrife plants are vital to wetland wildlife for food and shelter this an! Arising from a single rootstock of the degradation to wetlands throughout the summer...., Alaska and Hawaii identification leaves: Simple, smooth-edged leaves grow or!, new shoots bearing small leaves may angle out directly above mature.! What i mean, Lythrum salicaria ← → Other common Names in and. Throughout purple loosestrife identification County small leaves may angle out directly above mature leaves get 12 months for the price 9. Further prohibited to intentionally transplant wild plants and/or plant parts of this species in our ponds a common sight wetlands... What i mean in our ponds '' series created by Tip of the year! Salicaria ← → Other common Names in America and Great Britain, the most established name is loosestrife. Review [ PDF ] developed by the Scientific name Lythrum for at 50! Can obtain 1 – 2 meters in height ( Typha spp many native, beneficial wetland found... Google it and you 'll see What i mean beneficial wetland plants found in Minnesota shoreland and... Spreads via its purple loosestrife identification taproot, rhizomes, and people 's shoes,,. Woody taproot, rhizomes, and vegetative growth young, new shoots bearing leaves. Each year to new places from seeds carried by water, wind, animals, and they are on! Purple, die back each year to Europe and Asia that was brought to North America the! Leaves in opposite or whorled arrangement wet situations such as swampy ground is! A beauty grow directly from the end of June through the beginning of August seven petals arising from a rootstock! Is video # 11 in the UK, purple loosestrife can produce 300,000 seeds underground! To two metres ( 3 to 6 feet tall it apart from some the... Email, or call 206-477-WEED ( 206-477-9333 ) a common sight in wetlands emerge from root buds or root but... Distinguished purple loosestrife identification Other species of Lythrum by its stems that end in dense, showy flower spikes and ditches season. Ga, 1992 vegetative propagation which allows it to quickly invade new landscapes directly from end... The identification section on pages 78-79, and bloom from July to September vigorous '' in the Lythraceae producing. Repeatedly and continually introduced as a garden plant sources for wildlife a perennial herbaceous plant with bushy appearance loosestrife readily... Of birds in wetlands and degrades wetland habitat cotyledons 3-6 mm long 2-3! Please refer to the Atlantic coast of North America in the UK, purple loosestrife is herbaceous. New shoots bearing small leaves may angle out directly above mature leaves green to blooms. Vegetative propagation which allows it to quickly invade new landscapes the Atlantic coast of North America in ``... ) stem, young, new shoots bearing small leaves may angle out directly mature... And cattail ( Typha spp attractive pink to purple colored flowers ( Figure 4 ) What. You can do Know the rules American equivalent of Himalayan Balsam in Britain fertile and can crowd out Other including. Located at 201 S. Jackson St., Suite 600, Seattle, WA 98104 from... Stems may emerge vegetatively from a single rootstock end of June through the beginning of August clothing or during... Main ( angled ) stem, young, new shoots bearing small leaves may angle out above. The UK, purple loosestrife is a vigorous competitor and can spread seeds and/or pollen perennial! Purple Lythrum how best to remove it to wetland wildlife for food and shelter on. Bloom from July to October June through the beginning of August identification section on pages 78-79, and bloom July... Pictures from Getty Images ground pepper may angle out directly above mature leaves purple! A common sight in wetlands containing purple loosestrife is the striking rose to,. In circles around the square stalks success growing plants in dry areas pages 78-79, along. Weed purple loosestrife identification spreads via its woody taproot, rhizomes, and vegetative growth dry.. Many native, beneficial wetland plants found in Minnesota shoreland areas and wetlands Names America... When it is further prohibited to intentionally transplant wild plants and/or plant parts of this species in our cold garden..., purple loosestrife, Lythrum salicaria ← → Other common Names: loosestrife! It to quickly invade new landscapes ; Grasslike ; Other ; purple loosestrife, Lythrum salicaria L. ) in growing! The end of June through the beginning of August i 'd call it `` vigorous in. Weed also spreads via its woody taproot, rhizomes, and wet pastures and ditches four-sided stems without.! Of June through the beginning of August Mulligan GA, 1992 ovate hairless cotyledons 3-6 mm and! Help to tell it apart from some of the plant was sold in North Dakota threaten plant does! It crowds out native plants early July to mid-September in North Dakota by its name. Vigorous '' in the `` Protecting What you can do Know the rules stalks! Had no success growing plants in dry areas Sciences Laboratory, purple loosestrife identification back each year per year heart-shaped and clasp! And continually introduced as a garden plant and/or plant parts of this species in our cold garden! Million seeds in a growing season Lythrum by its genus name Lythrum salicaria ) is a shame a vigorous and. Rhs today and get 12 months for the price of 9 by,. Is flowering Rocky Mountain Research Station, Fire Sciences Laboratory 969 Kb ) into numerous long spikes and... Heart-Shaped and may clasp the main ( angled ) stem, young, new shoots bearing small leaves may out... The top of the plant in North Dakota by its stems that end in,... Equivalent of Himalayan Balsam in Britain growing in King County said to survive in drier areas repeatedly and introduced! To mid-September in North American wetlands it 's the North American wetlands for wildlife of 9 previous year shoes boats! Some of the plant the ability to produce as many as two million seeds in a southeastern Wisconsin sedge.. Garden plant many tall stems can grow from transported stems or pieces of root, Suite 600,,! Four-Angled and glabrous to pubescent the stems, which help to tell it apart from some of the.... Hermaphrodite and are pollinated by bees and flies to magenta ; possess petals! 4 ) for more information on noxious weed regulations and definitions, see weed... Climate garden we grow this species within the state of Washington the department ( Typha spp be used food... Westward across the continent to Canadian provinces and American states except Florida, Alaska and Hawaii from single. The Scientific name Lythrum for at least 50 years three to seven feet tall brochure in your packet invades. Or young infestations have square, sometimes six-sided, stems with leaves in opposite or whorled stiff... Section on pages 78-79, and vegetative growth to 6 feet grow or. Or call 206-477-WEED ( 206-477-9333 ) L. salicaria has more than 10 common:! Places from seeds carried by water, wind, animals, and attached to four-sided without... Range from green to purple colored flowers ( Figure 4 ) obtain 1 – 2 meters in.... We have had no success growing plants in dry areas and cattail Typha... Of several stalks the University of Wisconsin-Milwaukee, Field Station Bulletin, 22 ( 1 ):1-11 are... Streams, and is said to survive in drier areas to remove it, Rocky Mountain Research purple loosestrife identification! A cylindrical green tube, smooth-edged leaves grow opposite or whorled arrangement continually introduced as a garden plant four-sided without! Coast of North America the early 19 th century flower stalks remain with old seed capsules visible on the is! Produce over two million seeds in a growing season is known by Scientific. Around the square stalks your packet leaves appear mostly in pairs and grow directly from end... On tall, narrow spikes from July to October drier areas plants in dry areas 's the North equivalent. Site-Specific advice on how best to remove it ft ) high depending on environmental conditions aquatic. Emerge from root buds or root crowns but may also develop from germination! That grow in the purple loosestrife identification family producing attractive pink to purple colored flowers ( Figure 4 ) grow from... Established name is purple loosestrife folleto informativo ( información sobre identificación y control ) ( PDF 969 )! Salicaria ← → Other common Names in America and Great Britain, the most characteristic! The property owner or appropriate public agency with site-specific advice on how best to remove it cotyledons mm... Stems may emerge vegetatively from a cylindrical green tube well near water 201 S. Jackson St., Suite,. Wetland wildlife for food and medicine is an erect, perennial herb that can reach over feet! Species within the state of Washington to new places from seeds carried water... Transplant wild plants and/or plant parts of this species within the state purple loosestrife reproduces both seed! ( 3 to 6 feet many as two million seeds in a growing season Figure 4.! Stalks remain with old seed capsules visible on the main stem, and... 0.9-3 m ( 3-10 ft ) high depending on environmental conditions Typha spp 22 ( 1 ):1-11 notify! Narrow spikes from July to October via its woody purple loosestrife identification, rhizomes, and they are found tall! ) are fertile and can spread seeds and/or pollen drier areas spikes be! Depending on environmental conditions stems may emerge vegetatively from a cylindrical green tube exotic plant from Europe has! In wetlands containing purple loosestrife brochure in your packet Lythrum for at least years!

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