Hydrocharis

Hydrocharis is a genus of aquatic plants in the family Hydrocharitaceae described as a genus by Carl Linnaeus in 1753.^[2][3] Species range across much of Europe and Asia, northwestern and central Africa, New Guinea, and the Americas from the eastern and central United States to Argentina and Chile.^[1][4][5][6] Species are naturalized in parts of California, northeastern North America, southern tropical Africa, and Australia.^[1][7][8][9]

Frogbit
Hydrocharis morsus-ranae
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Order:	Alismatales
Family:	Hydrocharitaceae
Subfamily:	Hydrocharitoideae
Genus:	Hydrocharis L.
Type species
Hydrocharis morsus-ranae L.
Synonyms[1]
Hydrocharella Spruce ex Benth. & Hook.f. Hydromystria G.Mey. Jalambicea (Cerv.) Cerv. Limnobium Rich. Rhizakenia Raf. Trianea H.Karst.

The best known species is Hydrocharis morsus-ranae, commonly called common frogbit or European frog's-bit, and occasionally water-poppy.

Species

Five species are accepted.^[1]

• Hydrocharis chevalieri (De Wild.) Dandy – Benin, Cameroon, Gabon, Central African Republic, Republic of the Congo, Democratic Republic of the Congo
• Hydrocharis dubia (Blume) Backer – Primorsky Krai, China, Japan, Korea, Indian subcontinent, SE Asia, New Guinea
• Hydrocharis laevigata (Humb. & Bonpl. ex Willd.) Byng & Christenh. – smooth or South American frogbit; Mexico through Central and South America to Argentina and Chile
• Hydrocharis morsus-ranae L. – common or European frogbit; Europe, Siberia, North Africa, Turkey, Caucasus, Kazakhstan
• Hydrocharis spongia Bosc – American frogbit; central and eastern United States