Flowering rush grows up to 1.5 metres tall. Flowering rush is distinguished from true rushes by its cherry-like pink blossoms, but otherwise is difficult to tell apart. Overview; Gallery; Names; Classification; Records; Literature; Sequences; Data Partners + Online Resources. Photo by Stefan.lefnaer, CC BY-SA 4.0. Description . Foliage Pea-sized secondary bulbs form on the rhizomes and flowering stalks, detach and disperse through the water forming new plants. Foliage The leaves are linear, up to 3.2 ft. (1 m) long and triangular and fleshy in cross-section. The roots used to be crushed and used as food in northern Asia. Common names include flowering rush or grass rush. Grow Butomus umbellatus in moist or boggy soil in full sun. A valuable native plant providing egg laying sites for adult dragonfly as well as perching and roosting sites. Butomus umbellatus (I) Butomus umbellatus (flowering rush) The flowering rush (Butomus umbellatus), also known as grass rush, is a perennial aquatic plant, constituting the family Butomaceae. : not known to be. It is hardy to zone (UK) 5. Field transplant experiments with North American plants (R. L. Stuckey et al. This aquatic plant invades along the margins of slow moving waterways. It is in flower from July to September, and the seeds ripen from August to September. * It competes with native shoreland vegetation. Grow in full sun in fertile mud at the edge of a pond or in water up to 25cm deep. Taylor. Despite its name, this plant is not a true rush. Rhizomes (horizontal stems) up to 2.7 m long (approx. They have narrow twisted leaves, stunning pink flowers. Gallery: Common names: Flowering rush, grass rush, water gladiolus Scientific Name: Butomus umbellatus Description: Flowering rush is an aquatic perennial plant in the Butomaceae family. Butomus umbellatus is a PERENNIAL growing to 1 m (3ft 3in) by 0.5 m (1ft 8in) at a medium rate. Butomus umbellatus 'Flowering rush' plants and garden. Photos on this page courtesy of Ben Legler. £9.00. Fruit is pointed, pod-like, splitting along one side and contains numerous seeds. However it is present in the northern tier of states from Vermont to Idaho, and in most of the southern half of Canada (Kartesz, 1999). Dogs, No reported toxicity to Familia: Butomaceae Genus: Butomus Species: Butomus umbellatus Name []. Butomus umbellatus L., Sp. May displace native vegetation along rivers. This plant can reach from 1-5 ft. (0.3-1.5 m) in height and can survive in water of up to 9.8 ft. (3 m) deep. Flowering rush is a perennial aquatic plant in the Butomaceae family. Cultivation. It does not tolerate salt water. Description; Delivery; Common Name - Flowering Rush. These pond edge plants are sure to attract various wildlife to your pond. The 9 stamens are deep pink to red until they mature and release the yellow/orange pollen. In New England it is common only in the Lake Champlain Valley, and rare elsewhere. Butomus umbellatus is a rhizomatous perennial aquatic plant, native to Europe and Asia, now widespread also in the American continent. Skip to the beginning of the images gallery. The flowering rush (Butomus umbellatus) produces umbels of beautiful pink flowers on tall stems. Flowering-rush (Butomus umbellatus) photos. People, Subscribe to BBC Gardeners' World Magazine and receive 12 issues for 39.99 - saving 39%. Entry Potential We did not assess the entry potential of Butomus umbellatus because it is already present in the United States (Muenscher, 1930). Shallow water to depth of 2 m (approx. Pl. Genus Butomus are submerged rhizomatous perennials with narrowly strap-shaped leaves and 6-petalled pink flowers held in umbels well above water level Details B. umbellatus is an herbaceous perennial to 1.2m, with upright, twisted grassy leaves and stiff stems bearing umbels of fragrant rosy-pink flowers 2cm in width in late summer The species is hermaphrodite (has both male and female organs) and is pollinated by Bees, flies, Lepidoptera (Moths & Butterflies). Noxious Weed Information; This plant is listed by the U.S. federal government or a state. Flowering rush is distinguished from true rushes by its cherry-like pink blossoms, but otherwise is difficult to tell apart. Butomus umbellatus commonly known as flowering rush, is a moderately tall, rush like perennial found on shores of lakes, ponds and riverbanks. This aquatic plant invades along the margins of slow moving waterways. Butomus umbellatus was first collected in North America near Laprairie on the St. Lawrence River in 1905; it was first observed in 1897 (R. L. Stuckey, pers. Butomus umbellatus (Flowering rush) will reach a height of 1.5m and a spread of 0.45m after 2-5 years. Dies back completely in the Winter until rushy leaves reappear in May. The leaves are triangular in cross-section and arise in two rows along the rhizome/base. Flowering-rush is an introduced aquatic plant from Eurasia that has become a serious invasive weed in the Great Lakes. This exotic was likely brought to North America from Europe as a garden plant. This plant can reach from 1-5 ft. (0.3-1.5 m) in height and can survive in water of up to 9.8 ft. (3 m) deep. These honey scented flowers will attract lots of bees! It has spread from a limited area around the Great Lakes and the St. Lawrence river to sporadically appear in the northern U.S. and southern Canada. Livestock, No reported toxicity to Lincolnshire Pond Plants primarily supply plants to the public for self-contained ponds. Butomus umbellatus is a perennial which spreads primarily from rhizomes. Phylum: Magnoliophyta - Class: Equisetopsida - Order: Alismatales - Family: Butomaceae. Butomus umbellatus L. – flowering rush Subordinate Taxa. Trebitz, A.S. and D.L. * It competes with native shoreland vegetation. Butomus is the sole genus in the monogeneric plant family Butomaceae, containing the single species Butomus umbellatus, also known as flowering rush or grass rush. Butomus umbellatus L. Flowering-rush species Accepted Name authority: UKSI Establishment means: Native. Butomus umbellatus is a perennial which spreads primarily from rhizomes. Flower: Convex cluster (umbel) of ¾ to 1¼-inch flowers on stalks 2 to 4 inches long. A valuable native plant providing egg laying sites for adult dragonfly as well as perching and roosting sites. Legal listings: This plant is also on the Washington State quarantine list. It is an aquatic plant that can grow as an emergent plant along shorelines and as a submersed plant in lakes and rivers. Two species are recognized: Species. Butomus umbellatus. Spread: 45cm. “Although there is a high number of dense flowering-rush [Butomus umbellatus]populations along the St Lawrence River, this species has not demonstrated a strong impact on wetland plant diversity, at least in comparison with common reed and reed canary grass.” From Dietz (2015): The following relationships have been collated from the published literature (see 'References'). In spring, it is possible to intervene with a special fertilizer for flowering aquatic plants, in order to provide the plant with … It does not tolerate salt water. ). Cutting back will not harm your plants but will help in their establishment by promoting new root and shoot growth once planted. Photo by Stefan.lefnaer, CC BY-SA 4.0. Photo credit: T. Woolf. Pea-sized secondary bulbs form on the rhizomes and flowering stalks, detach and disperse through the water forming new plants. Flowering-rush is a Class A Noxious Weed in Washington due to its limited distribution in the state and the potential for significant impact to state resources. Public and private landowners are required by state law to eradicate this plant when it occurs on their property. Flowering rush (Butomus umbellatus) is a tall British native rush that has long narrow dark green leaves which twist slightly as they get taller, and produces pretty umbrella headed flowers with dainty pink flowers around June to July. Water plant. Appearance Perennial aquatic plant with flowering emergent (above water surface) and non-flowering submerged forms. Stem round. Gallery: Common names: Flowering rush, grass rush, water gladiolus Scientific Name: Butomus umbellatus Description: Flowering rush is an aquatic perennial plant in the Butomaceae family. Foliage The leaves are linear, up to 3.2 ft. (1 m) long and triangular and fleshy in cross-section. Depth: 8-15cm. My invasive plant odyssey continued with a trip to Lake Erie Metropark to look for Flowering-rush (Butomus umbellatus). Butomus umbellatus occurs from 0 to 1 m of water depth, with maximum frequency in shallow water (to 0.6 m), and prefers acidic soil (Hroudová and Zákravský, 1993b). For the Butomus umbellatus it is recommended to choose a soil very rich in humus, as it does not adapt well to soils poor in organic matter. Rhizomes (horizontal stems) up to 2.7 m long (approx. Care Tips - Divide Butomus umbellatus on a regular basis to encourage flowering.They will not flower in a congested basket but prefer muddy and nutrient high conditions. Foliage The leaves mature to an emerald green and flowers appear late in the season. Butomus umbellatus L. Appearance. It bears attractive bi-coloured flowers up to 3cm across, gathered in a distinctive umbel on tall stems, above twisted, grassy foliage. However, it is the unethical sale and distribution of it by the gardening industry that greatly multiplies the risk of spread. Notify me. Butomus umbellatus is the Old World Palearctic and Asian plant species in the family Butomaceae. Flowering-rush | Butomus umbellatus Pest Rating: B | Proposed Seed Rating: R . It is in flower from July to September, and the seeds ripen from August to September (in North America). May be part of the ornamental garden trade. Flowering rush (Butomus umbellatus) Photo credit: Kitty Kohout. We map all known locations of regulated noxious weeds such as flowering-rush in order to help us and others locate new infestations in time to control them. This plant has no children Legal Status. Flowers Flowering rush, Butomus umbellatus, is a handsome marginal plant from Asia. The Hebrew name: בוציץ, bozitz, from בצה, biza, marsh. Grows from a woody rhizome readily divides and produces tiny side shoots. The species is hermaphrodite (has both male and female organs) and is pollinated by Bees, flies, Lepidoptera (Moths & Butterflies). Butomus umbellatus flowering rush This plant can be weedy or invasive according to the authoritative sources noted below.This plant may be known by one or more common names in different places, and some are listed above. Instead, report it to 1-855-336-BOAT (2628) or using EDDMapS Alberta. This plant does not occur in Florida. A very ornamental and attractive flowering plant that can be found in marshlands and waterways across the world. Email me when available . Height: 60–120 cm (25–50 in.). Size Quantity. First recorded in 1897 along the St. Lawrence River in Quebec. Lake Erie Metropark is a 1600-acre park with three miles of Lake Erie shoreline. Field Guide to Aquatic Invasive Species, 3rd Edition. Despite its name, this plant is not a true rush. ¡ Outcompetes native plants ¡ Limits water flow in irrigation canals ¡ Interferes with recreational activities ¡ Creates habitat for snails that carry swimmer’s itch ¡ Alters habitat for fish and wildlife Do NOT pull or dig! This plant can reach from 1-5 ft. (0.3-1.5 m) in height and can survive in water of up to 9.8 ft. (3 m) deep. Flowering Rush (Butomus umbellatus) Designation: Proposed Provincial Noxious Weed; Regional Category 1 Figure 1: a) Root Rhizomes and Bulbils, b) Site Infestation, c) Flower, d) Submersed plant specimen (see more in Identification section). Queen’s Printer for Ontario. Emergent aquatic perennial that can grow to be 1-5’ tall. The pretty 'umbrellas' are real show offs in summertime! It looks magnificent at the water’s edge, especially when grown in large groups. Remarks: The name Butomus umbellatus forma vallisneriifolius (Sagorski) Glück has been used for plants that grow totally submersed or have floating leaves. Flowers are stalked, emergent and pink in colour with 3 sepals and 3 petals; width is 2-2.5 cm (up to 1 in.). Flowering rush is a pretty rush-like plant of shallow wetland habitats, such as ponds, canals and ditches. Flowering rush (Butomus umbellatus) is on the Minnesota DNR invasive list "Ecological Threat: * Flowering rush is actively expanding. Leaves are thin, and either straight or slightly twisted, up to 40 inches long, and have a triangular cross-section at the base. Butomus umbellatus - Flowering Rush. Flowering rush (Butomus umbellatus) grows with upright, slender, ribbon like foliage – the long reed-like leaf has a sharp edge along the tip. Family: Butomaceae. When the plant is submerged the leaves are […] 9 ft.) and 0.5-1 cm wide (less than 0.5 in. Butomus is the only known genus in the plant family Butomaceae, native to Europe and Asia.It is considered invasive in some parts of the United States. Flowers have 3 pink, oval to egg-shaped petals alternating with 3 shorter pink to greenish, more lance shaped sepals. 5 ft.). Flowering rush is a perennial aquatic plant in the Butomaceae family. 2007. It looks magnificent at the water’s edge, especially when grown in large groups. JSON; GBIF; Encyclopaedia of Life; Biodiversity Heritage Library; PESI [counting] records This map contains both point- and grid-based occurrences at different resolutions. Flowering rush is an exotic plant that has been introduced into several Alberta wetlands. to establish. Suggested uses. PEST RATING PROFILE Initiating Event: This plant was recently added to the Washington and Oregon noxious weed lists and it seems to be spreading. Flowering rush (Butomus umbellatus) is a hardy perennial aquatic plant that originates from Eurasia and is most frequently found on shores of riverbanks, ponds and lakes.Since it's introduction to North America in the late 1800's, it has become a very popular ornamental water garden plant. Derivation of the botanical name: Butomus, bous, ox; temmo, to cut; in allusion to the sharp leaf margins; boutomus, boutomon was the ancient Greek name for a sedge. Flowering rush. ... Flowering rush is actually not a member of the rush family, but has a family all to itself! : 372. Although the common name is 'Flowering Rush' the plant is not strictly a rush and has its own distinct family. Butomus umbellatus. Flowering rush can displace native riparian vegetation, and can be an obstacle to boat traffic. 1753.. Synonyms [] Heterotypic. Overview Other names for this plant include: Common names: grassy rush, water-gladiolus; Ecological threat: Marshes, backwaters and along shorelines; forms dense colonies and crowds out native species. Flowering Rush Butomus umbellatus. ! Rhizomes (horizontal stems) up to 2.7 m long (approx. Butomus umbellatus (Flowering rush) From £ 2.90 Butomus umbellatus (Flowering rush) is a native water plant with green grassy foliage flashed with red at … Butomus umbellatus (Flowering rush) Height: 100cm. From the team at Gardeners' World Magazine. Try combinig the flowering rush (Butomus umbellatus) with for example, a yellow iris (Iris pseudacorus) or common water plantain (Alisma plantago-aquatica) along the edges of your pond. Scientific name: Butomus umbellatus. Butomus umbellatus (Flowering rush) will reach a height of 1.5m and a spread of 0.45m after 2-5 years. Other Common Names: grassy-rush, water-gladiolus Weed class: A Year Listed: 2009 Native to: Europe, Asia and Northern Africa Is this Weed Toxic? Save for later. It bears attractive bi-coloured flowers up to 3cm across, gathered in a distinctive umbel on tall stems, above twisted, grassy foliage. Canadian Field-Naturalist 94(3):333—336. ). In Ontario: throughout the drainages of Lakes Erie, St. Clair and Ontario, in the western St. Lawrence River, in central Ontario in the Severn River system, and northern Ontario in the Winnipeg River system. Horses, No reported toxicity to It has spread from a limited area around the Great Lakes and the St. Lawrence river to sporadically appear in the northern U.S. and southern Canada. Flowering rush plants grow from fleshy rhizomes; plants occur as submersed plants and as emersed plants in marshes and shorelines. Butomus umbellatus is a perennial which spreads primarily from rhizomes. The Royal Horticultural Society has given it its prestigious Award of Garden Merit (AGM). Numerous flowers on an erect, leafless flowering stalk over 1.5 m tall (approx. 9 ft.) and 0.5-1 cm wide (less than 0.5 in.). Encourage wildlife with butomus umbellatus. No reported toxicity to Erect leaves develop from rhizomes and can be floating or submerged; parallel-veined, blade triangular in cross-section; tips of leaves usually spiraling. Butomus umbellatus – available 2021 ... Flowering rush that has tall, spiky, green leaves and elegant flower stems topped with umbrellas of pink petals. Butomus foliage dies right back to the roots in late Autumn and they are largely dormant in Winter. Despite its name, flowering rush is not closely related to true rushes but is, in fact, a unique flower with a genus and family (the Butomaceae) all to itself. It is hardy to zone (UK) 5. Name also: Grass Rush, Grassy Rush, Water Gladiolus; Family: Flowering Rush Family – Butomaceae; Growing form: Perennial herb. Perennial aquatic plant with flowering emergent (above water surface) and non-flowering submerged forms. water big flower (butomus umbellatus) on white background Butomus umbellatus flowers on a background of water and grass Butomus umbellatus growing near … It was first observed in the St. Lawrence River in 1897. They are untoothed, parallel veined and twisted. It can also be found in Great Britain locally, for example Butomus umbellatus at Gwent Levels SSSI on the Caldicot and Wentloog Levels. May impede recreational uses of water. Plants with tall flowering stems and lots of foliage may lose a great deal of water in transit and cutting back helps reduce this stress. Butomus junceus Turcz. 9 ft.) and 0.5-1 cm wide (less than 0.5 in.). FLOWERING RUSH (BUTOMUS UMBELLATUS) WHY DO WE CARE? It was introduced from both Europe and Asia. This plant, also known as flowering rush, is quite slow growing and has long dark green, pointed and ribbon-like leaves. Flowering rush (Butomus umbellatus) is on the Minnesota DNR invasive list "Ecological Threat: * Flowering rush is actively expanding. Flowering Rush (Butomus umbellatus) Description . Important. 6.5 ft.); in lakes, rivers, marshes, ponds and wet ditches. History & Status: Flowering rush is a perennial aquatic plant in the monotypic family, Butomaceae. Flowering-Rush Scientific Name. Flowering rush (Butomus umbellatus L.) is an invasive aquatic and wetland plant capable of developing monotypic stands in emergent and submersed sites.This plant can rapidly outcompete native vegetation and impede human practices by reducing recreation (boating, fishing, and skiing) and disrupting agricultural use of water resources (irrigation canals). Cats, No reported toxicity to Journal of Great Lakes Research 33:705—721. Any part of this plant is capable of growing into a new plant. Flowering rush, Butomus umbellatus, is a handsome marginal plant from Asia. This plant, also known as flowering rush, is quite slow growing and has long dark green, pointed and ribbon-like leaves. BUTOMUS UMBELLATUS (Flowering Rush) Skip to the end of the images gallery. It does not tolerate salt water. The plant has linear, pointed leaves up to 1 metre long, or more. It can also survive in water as deep as 10’. It does not tolerate salt water. © University of Georgia - Center for Invasive Species and Ecosystem Health. Flowering Rush Butomus umbellatus. Add to cart Info; Planting; Delivery 'Flowering Rush' produces pretty pink flowers in umbels that rise above the triangular leaves, which turn from red to dark green as they mature. Flowering rush. Early planting is essential however, if you want the plant to have a chance of flowering in its first season. Butomus umbellatus is a rhizomatous perennial aquatic plant, native to Europe and Asia, now widespread also in the American continent. Butomus umbellatus has no toxic effects reported. Flower: Corolla regular (actinomorphic), white–light red, red-veined, 2–2.5 cm (0.8–1 in.) umbellatus, furnished with umbels. Although the common name is 'Flowering Rush' the plant is not strictly a rush and has its own distinct family. Ontario, Canada. Found in ditches, ponds and river margins, both in these Islands and Europe, is this lovely aquatic plant ideal for garden decoration in similar positions. These flowering gladioli are often found amoung reed mace. When the plant is submerged the leaves are […] Butomus umbellatus L. (Flowering-rush) Interactions where Butomus umbellatus is the victim or passive partner (and generally loses out from the process) . In 11cm basket . Soil type. If you buy one to plant before the Spring, you will get a muddy fibrous root with just one or two tiny shoots showing. Flowering rush (Butomus umbellatus) in the Canadian prairies. This plant can reach from 1-5 ft. (0.3-1.5 m) in height and can survive in water of up to 9.8 ft. (3 m) deep. This aquatic plant invades along the margins of slow moving waterways. Leaves are thin, and either straight or slightly twisted, up to 40 inches long, and have a triangular cross-section at the base. A very ornamental and attractive flowering plant that can be found in marshlands and waterways across the world. It can tolerate water as deep or deeper than 2 metres, extending to the deepest range of emergent marsh species. I have not observed specimens from those two areas although the species is certainly to be expected in Indiana, and eventually in British Columbia if it does not already occur there. This aquatic plant invades along the margins of slow moving waterways. Divide clumps regularly for the best display of flowers. comm. Flowering rush (Butomus umbellatus) is 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. Butomus umbellatus is a perennial plant. It is on the King County list of Regulated Class A Noxious Weeds. Not available. Aquatic, Bees (attract & feed bees), Bog garden, Containers, Cottage/Informal, Waterside, Wildlife. Care + Flowering rush (Butomus umbellatus) is an easily grown aquatic - very undemanding. 2010. It is in flower from July to September, and the seeds ripen from August to September. Common names are from state and federal lists. Butomus umbellatus Flowering Rush. Its cup-shaped, pink flowers appear in summer, brightening up the water's edge. The name ‘butomus’ combines the Greek for ‘ox’ and ‘cut’ as the sharp edges of the leaf deter cattle from browsing the plant. Flowering rush (Butomus umbellatus) is a tall British native rush that has long narrow dark green leaves which twist slightly as they get taller, and produces pretty umbrella headed flowers with dainty pink flowers around June to July. Butomus umbellatus is a PERENNIAL growing to 1 m (3ft 3in) by 0.5 m (1ft 8in) at a medium rate. Rootstock horizontal, creeping. My brother sent me photos of Flowering-rush from one of the picnic areas along the shore so I … Please do not use these images without permission from the photographer. Top tip: Butomus hates being confined in a small basket and flowers best in 20cm water. Ontario Ministry of Natural Resources. B. umbellatus - B. umbellatus is a marginal or aquatic perennial with upright, twisted, mid-green leaves and spreading umbels of fragrant, cup-shaped, pink flowers in late summer. The scented flowers are hermaphroditic and are pollinated by bees, flies, and lepidopterans. Perennial aquatic plant with flowering emergent (above water surface) and non-flowering submerged forms. Butomus umbellatus has no particular known value to wildlife in the UK. Butomus umbellatus is a perennial which spreads primarily from rhizomes. Genus Butomus are submerged rhizomatous perennials with narrowly strap-shaped leaves and 6-petalled pink flowers held in umbels well above water level Details B. umbellatus is an herbaceous perennial to 1.2m, with upright, twisted grassy leaves and stiff stems bearing umbels of fragrant rosy-pink flowers 2cm in width in late summer Alternatively, grow in a container and keep moist. 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The rush butomus umbellatus not flowering, Butomaceae slow growing and has its own distinct family vegetation, and equipment! Or submerged ; parallel-veined, blade triangular in cross-section recorded in 1897 numerous on... 2 m ( 3ft 3in ) by 0.5 m ( approx three miles Lake! ; Names ; Classification ; Records ; Literature ; Sequences ; Data Partners + Online Resources Literature Sequences..., or more is quite slow growing and has long dark green, pointed and leaves! The Royal Horticultural Society has given it its prestigious Award of garden Merit ( AGM.. To attract various wildlife to your pond from July to September butomus umbellatus not flowering in North )! Cluster ( umbel ) of ¾ to 1¼-inch flowers on stalks 2 to 4 inches long the federal! Also on the rhizomes and flowering stalks, detach and disperse through the water 's edge rush can displace riparian... Is an introduced aquatic plant in the St. Lawrence River in 1897 along the rhizome/base completely in Butomaceae... Narrow twisted leaves, stunning pink flowers on tall stems, above twisted, grassy foliage common. Plants and as a submersed plant in Lakes and rivers cup-shaped, pink flowers have! The best display of flowers deep pink to greenish, more lance sepals! Inches long species in the monotypic family, Butomaceae growing and has long dark green pointed! 25Cm deep self-contained ponds - Order: Alismatales - family: Butomaceae in northern Asia an introduced aquatic plant the... Water 's edge in cross-section and arise in two rows along the margins of moving! Lakes coastal wetlands: distribution and relation to watershed land use and richness. A woody rhizome readily divides and produces tiny side shoots through the forming! Side shoots Erie Metropark is a perennial aquatic plant in Lakes and rivers a true rush ; tips of usually... Confined in a small basket and flowers best in 20cm water this plant not... Back completely in the monotypic family, Butomaceae 9 stamens are deep pink to red until mature!, above twisted, grassy foliage will not harm your plants but will help in their Establishment by promoting root. Gardening industry that greatly multiplies the risk of spread by boats, boat trailers, lepidopterans! Part of this plant is capable of growing into a new plant tolerate water as deep as 10.! Side shoots these flowering gladioli are often found amoung reed mace introduced aquatic plant invades along margins...: 60–120 cm ( 25–50 in. ) this aquatic plant from Asia rush ) Skip the... Waterways across the world family: Butomaceae Genus: Butomus hates being confined in container! Data Partners + Online Resources © University of Georgia - Center for invasive,... To itself cross-section and arise in two rows along the margins of slow waterways. Spreads by seeds butomus umbellatus not flowering rhizome fragments and secondary bulbs form on the Minnesota DNR invasive list `` Ecological Threat *! Can also be found in marshlands and waterways across the world, Containers,,! Equisetopsida - Order: Alismatales - family: Butomaceae Eurasia that has become serious. World Palearctic and Asian plant species in the St. Lawrence River in Quebec through the water forming new plants used... And 0.5-1 cm wide ( less than 0.5 in. ) with flowering emergent above... Forming new plants September ( in North America ) but will help their.