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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 [ 1 ] and is also widely used as aquarium vegetation and laboratory demonstrations of cellular activities.
Elodea bifoliata is an perennial aquatic plant that roots in the bottoms of freshwater streams and lakes. [3] It has small flat leaves just 4.7–24.8 millimeters long. [4] 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 ...
Elodea densa flower. Elodea densa is an aquatic plant growing in water up to 4 m (13 ft) deep, with trailing stems to 2 m (6.6 ft) or more long, producing roots at intervals along the stem. The leaves are produced in whorls of four to eight, 1–4 cm (0.39–1.57 in) long and 2–5 mm (0.079–0.197 in) broad, with a pointed leaf tip.
Elodea canadensis (American waterweed or Canadian waterweed or pondweed) is a perennial aquatic plant, or submergent macrophyte, native to most of North America. [ 3 ] [ 4 ] [ 5 ] It has been introduced widely to regions outside its native range and was first recorded from the British Isles in about 1836.
Common names include African elodea, curly waterweed, oxygen weed and South African oxygen weed. It is used as freshwater aquarium plant. It is used as freshwater aquarium plant. It is an invasive plant in some countries. [ 1 ]
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Potamogeton is a genus of aquatic, mostly freshwater, plants of the family Potamogetonaceae.Most are known by the common name pondweed, although many unrelated plants may be called pondweed, such as Canadian pondweed (Elodea canadensis).
Hydrocharitaceae is a flowering plant family including 16 known genera with a total of ca 135 known species (Christenhusz & Byng 2016 [2]), that including a number of species of aquatic plant, for instance the tape-grasses, the well known Canadian waterweed, and frogbit.