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Hydrocharitaceae Genera
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 Vallisneria spiralis, tape-grass, the well-known Elodea canadensis, Canadian waterweed, and Hydrocharis morsus-ranae, 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 plant, annual or Perennial plant, perennial, with a creeping monopodial rhizome with the Leaf, 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 wikt:emersion, emerse. As with many aquatics they can be quite variable in shape – from leaf shape, linear to Orbicular (leaf), orbicular, with or wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrocharis Morsus-ranae
''Hydrocharis morsus-ranae L.'' is a species of the genus ''Hydrocharis'' known by the common name European frog-bit. It is a free-floating flowering plant that bears small white flowers. ''"Morsus-ranae"'' means "frog bite" in Latin, and it is part of this species' scientific name because frogs might seen as biting on the leaves. European frog-bit is often mistaken for an American frog-bit (''Limnobium spongia'') due to their similar looks and floating freely. It usually displays invasive behavior in Canada and North America, having a major impact on native ecosystems. However, European frog-bit is efficient in accumulating high concentrations of heavy metals and chemicals, removing waste from water. Description ''Hydrocharis morsus-ranae'' is a perennial plant with a stoloniferous growth, reaching a diameter of 0.1 to 1.5 meters. It forms individual rosettes ranging from 1 to 30cm. While mainly having separate male and female plants, it sometimes shows both sexes on different ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
