NVS code Help. Philotria linearis Rydb. [9] It lives entirely underwater, the only exception being the small white or pale purple flowers which float at the surface and are attached to the plant by delicate stalks. Hortus third. U.S. Weed Information. Tiny, apetalous greenish-white flowers appear from July to September. Common Name: CANADIAN WATERWEED: Status: Native, OBL (NWPL) Specimen: View details of USF Herbarium specimens ** Not applicable or data not available. Common Name: Common Waterweed: Scientific Name: Elodea canadensis Native or Non-native: Native: Illustration: Link to larger illustration: It is usually fairly easy to distinguish from its relatives, like the Brazilian Egeria densa and Hydrilla verticillata. An older name for this genus is Anacharis, which serves as a common name in North America. Elodea minor. Plants are dioecious with male and female flowers appearing on separate plants. Farw., var. Infestations of this species compete with desirable aquatic plants, resulting in modified aquatic flora assemblages and habitats. Four varieties are recognized by Missouri Botanical Garden (2019): var. The fruit is an ovoid capsule, about 6 mm long containing several seeds that ripen underwater. Europe has been particularly affected with the first record dating back as far as 1836. & Schmidt , Udora canadensis (Michaux) Nuttall 1818 Common names: Almindelig vandpest (Danish), American elodea, American elodea (United States), American elodea (English), American waterweed (Germany), anacharis (English), brede waterpest (Dutch), broad waterweed (English-United States), Canada waterweed (United States), Canadian pondweed (United States), Canadian pondweed … planchonii Elodea canadensis Michaux, var. The leaves can grow up to 0.67 in. Suggested Use: Water Plant, Naturalize, Rain Garden. In waters of almost every kind and depth, including the Great Lakes. – Canadian waterweed. When pollination does occur, it is waterborne (pollen drifts from male to female flowers). One should note that Elodea canadensis is an important food for ducks and other water birds. Elodea canadensis may be confused with Hydrilla verticillata or Egeria densa. Elodea occidentalis. Elodea canadensis Michx. Only the lighting will be important. Common name English : Canadian waterweed, American Pondweed, American Waterweed, Canadian Pondweed, Canadian Waterweed, canadian pondweed العربية : أيلود كندي Philotria nuttallii. It commonly invades still or slow-moving freshwater environments and thrives in temperate regions. Plant roots may be anchored in the muddy bottoms of small ponds. H. St. John. Elodea canadensis, commonly called Canadian pondweed, is a submerged aquatic perennial that has become a popular plant for water gardens and cool water aquariums. Elodea linearis (Rydb.) 1927. Midl. Plants spread rapidly and can take over larger bodies of water, but are relatively easy to control in small water gardens. Common Name: COMMON WATERWEED: Coefficient of Conservatism: 1 Coefficient of Wetness: -5 Wetness Index: OBL Physiognomy: Nt P-Forb. Scientific Name: Elodea canadensis Michx. Comm. Britton. Propagation is by cuttings. The website also provides access to a database and images of plants photos and herbarium specimens found at … Krasnoborov, I. M., ed. (Hydrocharitaceae) in Greece", https://en.wikipedia.org/w/index.php?title=Elodea_canadensis&oldid=993155722, Wikipedia articles incorporating a citation from the 1911 Encyclopaedia Britannica with Wikisource reference, Wikipedia articles incorporating text from the 1911 Encyclopædia Britannica, Creative Commons Attribution-ShareAlike License, This page was last edited on 9 December 2020, at 02:13. 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. [1][2][3] It has been introduced widely to regions outside its native range and was first recorded from the British Isles in about 1836. Elodea is present in virtually every region of North America (Kartesz, 1999). Common Name(s): broad waterweed [English] Canada waterweed [English] Canadian waterweed [English] Taxonomic Status: Current Standing: accepted ... Elodea canadensis : Source: NODC Taxonomic Code, database (version 8.0) Acquired: 1996 : Notes: Reference for: Elodea canadensis Elodea (Elodea canadensis) is currently most troublesome in eas… County Down. Ditch with a dense colony of flowering plants, Illustration showing leaf and flower detail, Hackney, P. Elodea canadensis is widely distributed on most continents, while E. nuttallii is established in Europe and Asia. Location: Found in lakes in depths up to 10 feet, often in hard water, and near stream inlets. Pybus, C. and O'Halloran, P. 2009. Philotria canadensis (Michx.) It is rare in Florida, occurring in some streams in Jackson County. Elodea canadensis Michx. Foliage The leaves are a bright, translucent green. Subordinate Taxa. NATIVE Leaf: generally crowded at stem tips, 3 per node on mid, upper stems; blade generally 5--15 mm, 2--5 mm wide, linear, obtuse or abruptly pointed at tip, flaccid or not. … is universally accepted for this common, widespread waterweed. Vascular – Exotic. weeds Canada 1–67. Elodea canadensis, commonly called Canadian pondweed, is a submerged aquatic perennial that has become a popular plant for water gardens and cool water aquariums. APNI* Description: Attached dioecious submerged aquatic perennial; branched stems to 3 (-6) m long with crowded internodes near the apex and producing long thread-like, often reddish, roots at the lower nodes. Naturalist 10: 203. Elodea canadensis Michx. Colonies in the wild provide excellent cover for fish, small crustaceans, insect larvae and snails. Egeria densa is also a larger, bushier plant with longer leaves. Elodea Canadensis only grows in submerged conditions. Remove or clip stems as needed to control population. ... Elodea canadensis var. The plant has two German names which are rather interesting: "Wasserpest" ("water pest") hints to its invasive character, while "Entenflott" ("duck float") is linked to its floating existance on … Anacharis is often confused with other invasive aquatic plants, such as Brazilian elodea, Egeria, and Hydrilla. Common names: Elodea (pronounced el-oh-DEE-a), American elodea, common elodea, anacharis, Canada waterweed. and from the Lagan Canal near Lisburn, Northern Ireland.[8]. [6], Records of the species' presence in Ireland include: County Galway, found at several sites along the Eglinton Canal, County Galway,[7] The joints of … planchonii (Caspary) Farwell, Amer. These all have leaves in whorls around the stem; however, Elodea usually has three leaves per whorl, whereas Egeria and Hydrilla usually have four or more leaves per whorl. nam. Elodea canadensis Michx. (1.7 cm) long and 0.16 in. This plant is sometimes sold in small bunches for large aquariums where it provides interesting foliage and serves as both an oxygenator and water clarifier, although its close relative, Egeria densa (Brazilian waterweed marketed under the name of anacharis), is more commonly sold for this purpose.Genus name comes from the Greek word helodes meaning marshy or bred in marshes.Specific epithet means of Canada. Family: Hydrocharitaceae: Common Names: Canadian, Rocky Mountain, or common waterweed: Eastern Washington: Native: Conservation Status: Notes: Click on any image to enlarge it. Also commonly called waterweed or anacharis. Set plants out in pots or containers at the bottom of the water body or float plant cuttings/fragments in the water. Elodea canadensis. W shore of Coffin Lake W of Colville, WA on the rd to Tiger; N 48.575995 W 117.555233 – Stevens Co. – 10/3/2011; Philotria minor. Female flower of Elodea nuttallii. Philotria occidentalis. G. E. Crow flower. It lives in fresh water. Kartesz, J. T. 1994. Reproduction: Vegetative. The temperature also plays a role because the plant does not like heat. [4], The native range of the species lies within North America, but it has been introduced in many parts of the world either intentionally or not. Elodea planchonii Casp. In Bailey, var. Europe; as you might guess, a cold water species (45-65 F.). The name Elodea canadensis Michx. Synonyms: Anacharis canadensis, A. alsinastrum, Serpicula occidentalis, Elodea latifolia Natural Distribution & Ecology: From North America, introduced elsewhere, esp. Propagation is by cuttings. Native to North America, but widely naturalized in Europe. It is similar to its relative, Elodea canadensis. Anacharis canadensis (Michx.) E. nuttallii is established in Europe and Asia. APNI* Synonyms: Anacharis canadensis (Michx.)Planch. Large aquariums. Elodea columbiana. Classified in the frog’s-bit family (Hydrocharitaceae), Elodea is native to the Americas and is also widely used as aquarium vegetation and laboratory demonstrations of cellular activities. The Common Waterweed (Elodea canadensis) also called the Canadian Waterweed or American Waterweed is of the order Hydrocharitales and Tape-grass Family (Hydrocharitaceae). [11], It is frequently used as an aquarium plant. Elodea canadensis Michx. Recorded up to 8.2 m deep in Michigan, and up to 14 m elsewhere. This plant has no children. Not recommended for large ponds where population control can be more difficult. Anacharis occidentalis. It blooms in the spring (Wunderlin, 2003). Name: Date: Period: Measuring the Rate of Photosynthesis in Elodea Background Reading: Read the following passage. Details; Images (8) Synonyms (1) References (20) Homonyms (1) Subordinate Taxa; Specimens; Distributions (51) ... Common Names: Canada waterweed (English, Canada) Canada Weed Committee. Like most aquatic weeds, high nutrient loads in the water will result in more vigorous growth of this species. angustifolia (Muhl.) The genus name (Elodea) is from the Greek for "marsh." The common name for the American or Canadian waterweed, Elodea canadensis, is Anacharis — an older term for the genus. Structural class. The leaves are bright green, translucent, oblong, 6–17 mm long and 1–4 mm broad, borne in whorls of three (rarely two or four) round the stem. Elodea is a genus of 6 species of aquatic plants often called the waterweeds described as a genus in 1803. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. It is frequently used as an aquarium plant. 2000-. Hydrilla (Hydrilla verticillata), Common Waterweed (Elodea canadensis). It is dioecious, with male and female flowers on different plants. The Alabama Plant Atlas is a source of data for the distribution of plants within the state as well as taxonomic, conservation, invasive, and wetland information for each species. Add comments or questions in the space in the right margin. Flora category. [10], It is closely related to Elodea nuttallii, which generally has narrower leaves under 2 mm broad. Distribution of some submerged aquatic macrophytes in the Eglinton Canal, Galway; "First confirmed record of Elodea canadensis Michx. latifolia (Casp.) Monocotyledonous Herbs. The Garden wouldn't be the Garden without our Members, Donors and Volunteers. Young plants initially start with a seedling stem with roots growing in mud at the bottom of the water; further adventitious roots are produced at intervals along the stem, which may hang free in the water or anchor into the bottom. [1][2][3][10], It grows rapidly in favorable conditions and can choke shallow ponds, canals, and the margins of some slow-flowing rivers. Australian plant common name database (on-line resource). Thrives in cool water. By absorbing nutrients, it helps control algae and keep waters clear. is introduced into Europe and the United States. It can reach up to 9.8 ft. (3 m) in length. It grows indefinitely at the stem tips, and single specimens may reach lengths of 3 m or more. The seeds are 4–5 mm long, fusiform, glabrous (round), and narrowly cylindrical. Planch. Man mowing the grass Overview Appearance Elodea canadensis is a perennial aquatic plant, native to most of North America. Weed status Elodea canadensis is a serious weed in more than 45 countries around the world, where it obstructs waterways and irrigation. All Images Enlarge Image. This aquatic herb has stems that branch out between 20 and 30 cm in length, which tends to form dense monospecific stands that can cover hundreds of acres (DAISIE, 2009). Other common names for this plant include Anacharis (an older name for the genus Elodea), water thyme, common elodea, and ditch moss. Elodea canadensis (American waterweed or Canadian waterweed or pondweed) is a perennial aquatic plant, or submergent macrophyte, native to most of North America. McGregor, R. L. et al. [5] Since then, the species' presence has been confirmed in all continental European countries. Flora of Siberia (English translation) Liberty Hyde Bailey Hortorium. The specimen shown in the photograph above was removed from French Hill Pond for study in October 2011. 1992.(Ed.) It requires summer water temperatures of 10–25 °C and moderate to bright lighting. 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