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Elodea
''Elodea'' is a genus of eight species of aquatic plants often called the waterweeds described as a genus in 1803. 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. It lives in fresh water. An older name for this genus is ''Anacharis'', which serves as a common name in North America. The introduction of some species of ''Elodea'' into waterways in parts of Europe, Australia, Africa, Asia, and New Zealand has created a significant problem and it is now considered a noxious weed in these areas. ;Species # '' Elodea bifoliata'' – Canada ( AB, SK), W United States ( OR + CA to NM + MN) # '' Elodea callitrichoides'' – Argentina, Uruguay # '' Elodea canadensis'' – most of United States + Canada # '' Elodea densa'' # '' Elodea granatensis'' – much of South America # '' Elodea heterostemon'' # '' Elodea najas'' # '' Elodea nu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elodea Canadensis
''Elodea canadensis'' (American waterweed or Canadian waterweed or pondweed) is a perennial aquatic plant, or submergent macrophyte, native to most of North America.Flora of North America''Elodea canadensis''/ref>Plants of British Columbia''Elodea canadensis''Jepson Flora''Elodea canadensis''/ref> It has been introduced widely to regions outside its native range and was first recorded from the British Isles in about 1836. Distribution 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. Europe has been particularly affected with the first record dating back as far as 1836. Since then, the species' presence has been confirmed in all continental European countries. Records of the species' presence in Ireland include: County Galway, found at several sites along the Eglinton Canal, County Galway, County Down. and from the Lagan Canal near Lisburn, Northern Ireland. Description Young plants init ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elodea Potamogeton
''Elodea'' is a genus of eight species of aquatic plants often called the waterweeds described as a genus in 1803. 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. It lives in fresh water. An older name for this genus is ''Anacharis'', which serves as a common name in North America. The introduction of some species of ''Elodea'' into waterways in parts of Europe, Australia, Africa, Asia, and New Zealand has created a significant problem and it is now considered a noxious weed in these areas. ;Species # '' Elodea bifoliata'' – Canada ( AB, SK), W United States ( OR + CA to NM + MN) # '' Elodea callitrichoides'' – Argentina, Uruguay # ''Elodea canadensis'' – most of United States + Canada # ''Elodea densa'' # '' Elodea granatensis'' – much of South America # ''Elodea heterostemon'' # '' Elodea najas'' # '' Elodea nuttal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elodea Nuttallii
''Elodea'' is a genus of eight species of aquatic plants often called the waterweeds described as a genus in 1803. 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. It lives in fresh water. An older name for this genus is ''Anacharis'', which serves as a common name in North America. The introduction of some species of ''Elodea'' into waterways in parts of Europe, Australia, Africa, Asia, and New Zealand has created a significant problem and it is now considered a noxious weed A weed is a plant considered undesirable in a particular situation, growing where it conflicts with human preferences, needs, or goals.Harlan, J. R., & deWet, J. M. (1965). Some thoughts about weeds. ''Economic botany'', ''19''(1), 16-24. Pla ... in these areas. ;Species # '' Elodea bifoliata'' – Canada ( AB, SK), W United States ( OR + CA to NM + MN) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elodea Najas
''Elodea'' is a genus of eight species of aquatic plants often called the waterweeds described as a genus in 1803. 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. It lives in fresh water. An older name for this genus is ''Anacharis'', which serves as a common name in North America. The introduction of some species of ''Elodea'' into waterways in parts of Europe, Australia, Africa, Asia, and New Zealand has created a significant problem and it is now considered a noxious weed in these areas. ;Species # '' Elodea bifoliata'' – Canada ( AB, SK), W United States ( OR + CA to NM + MN) # '' Elodea callitrichoides'' – Argentina, Uruguay # ''Elodea canadensis'' – most of United States + Canada # ''Elodea densa'' # '' Elodea granatensis'' – much of South America # ''Elodea heterostemon'' # '' Elodea najas'' # ''Elodea nuttall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elodea Bifoliata
''Elodea bifoliata'', commonly called twoleaf waterweed, is a species of perennial flowering plant in the waterweed genus, ''Elodea''. It grows in much of the western United States and Canada. It was only recognized as a separate species in the 1960s. It is found growing in streams and shallow bodies of water. Description ''Elodea bifoliata'' is a perennial aquatic plant that roots in the bottoms of freshwater streams and lakes. It has small flat leaves just 4.7–24.8 millimeters long. They are narrow and grass like or only slightly elliptic, 0.8–2.5 mm in width. There are usually just two leaves at each stem node, though there may be two or three per node at the middle of the stem. They are never crowded near the tip. Plants have separate seed producing and pollen producing inflorescences. A pollen producing, staminate inflorescence will have leaf like bracts 10 to 42 millimeters long. They are narrow at the base and 2–5 mm wide further out. The stamina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elodea Densa
''Elodea densa'', the large-flowered waterweed or Brazilian waterweed, is a species of '' Elodea'' native to warm temperate South America in southeastern Brazil, Argentina, Chile and Uruguay. It is considered a problematic invasive species due to its use in home aquariums and subsequent release into non-native ecosystems. Description ''Elodea densa'' is an aquatic plant growing in water up to deep, with trailing stems to or more long, producing roots at intervals along the stem. The leaves are produced in whorls of four to eight, long and broad, with a pointed leaf tip. The stem system of the plant will grow until it reaches the surface of the water, where it will begin to spread out, creating a thick flower canopy that blocks light from reaching plants below it. It is dioecious, with male and female flowers on separate plants; the flowers are diameter, with three broad, rounded, white petals, long on male plants, and long on female plants.Flora of NW Europe''Egeria d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrocharitaceae
Hydrocharitaceae is a flowering plant family which includes 14 accepted genera and a total of ca 135 known species (Christenhusz & Byng 2016). The family holds a number of species of aquatic plants, including tape-grass, the well-known Canadian waterweed, and frogbit. The family includes both freshwater and marine aquatics. They are found throughout the world in a wide variety of habitats, but are primarily tropical. Description The species are annual or perennial, with a creeping monopodial rhizome with the leaves arranged in two vertical rows, or an erect main shoot with roots at the base and spirally arranged or whorled leaves. The leaves are simple and usually found submerged, though they may be found floating or partially emerse. As with many aquatics they can be quite variable in shape – from linear to orbicular, with or without a petiole, and with or without a sheathing base. The flowers are arranged in a forked, spathe-like bract or between two opposite bracts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stormy Lake (Alaska)
Stormy Lake is a lake on the Kenai Peninsula of Alaska, also known as Three Bay Lake. It is located north of the town of Kenai. The lake has been the target of two efforts to eradicate invasive species and re-introduce native flora and fish. Name and location Stormy Lake is a lake on the Kenai Peninsula. It is located within the Captain Cook State Recreation Area. The prevailing winds can sometimes produce whitecaps on the lake, giving it its name. It is also known as ''Three Bay Lake'' because it consists of three nearly separate areas connected by channels. Access to the lake is via the Kenai Spur Highway, about north of Kenai. Facilities include a boat launch, overlook, picnic area, wading/swimming area, and a small, boat-in only campground. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aquatic Plant
Aquatic plants, also referred to as hydrophytes, are vascular plants and Non-vascular plant, non-vascular plants that have adapted to live in aquatic ecosystem, aquatic environments (marine ecosystem, saltwater or freshwater ecosystem, freshwater). In lakes, rivers and wetlands, aquatic vegetations provide cover for aquatic animals such as fish, amphibians and aquatic insects, create substrate (marine biology), substrate for benthic invertebrates, produce oxygen via photosynthesis, and serve as food for some herbivorous wildlife. Familiar examples of aquatic plants include Nymphaeaceae, waterlily, Nelumbo, lotus, duckweeds, mosquito fern, floating heart, water milfoils, Hippuris, mare's tail, water lettuce, water hyacinth, and algae. Aquatic plants require special adaptation (biology), adaptations for prolonged inundation in water, and for buoyancy, floating at the water surface. The most common adaptation is the presence of lightweight internal packing cells, aerenchyma, but floa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
