Hydrocharis morsus-ranae

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Hydrocharis morsus-ranae
HydrocharisMorsus-ranae2.jpg

Least Concern (IUCN 3.1)
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Alismatales
Family: Hydrocharitaceae
Genus: Hydrocharis
Species:
H. morsus-ranae
Binomial name
Hydrocharis morsus-ranae
Young Hydrocharis morsus-ranae plant.

Hydrocharis morsus-ranae, frogbit, is a flowering plant belonging to the genus Hydrocharis in the family Hydrocharitaceae. In North America, it is referred to as common frogbit or European frog's-bit[1] to distinguish it from the related American frogbit ().

It is a small floating plant resembling a small water lily. It bears small, three-petalled white flowers. The floating leaves are kidney-shaped and grow in rosettes on the water surface, with the roots hanging down into the water column but not normally touching bottom. Frogbit is fast growing and spreads rapidly by stolons, surviving the winter as dormant turions which rest on the bottom, rising again to the surface in spring.[citation needed]

Mass development of European frogbit

Frogbit is native to Europe and parts of Asia, but it was introduced to Canada in the 1930s and has become invasive in eastern Canada and the northeastern United States, particularly around the Great Lakes. It is considered a pest in this region as it colonises waterways and forms dense masses of vegetation on the surface, threatening native biodiversity, although in its native areas it is rarely dominant.[2]

References[]

  1. ^ Dickinson, T.; Metsger, D.; Bull, J.; & Dickinson, R. (2004) ROM Field Guide to Wildflowers of Ontario. Toronto:Royal Ontario Museum, p. 67.
  2. ^ European Frogbit: Should we be Worried? Archived September 22, 2006, at the Wayback Machine

External links[]


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