Utricularia gibba L.

Utricularia gibba is a carnivorous aquatic plant, typical of tropical and sub-tropical climates. This plant is native to Colombia but, nowadays, it is present almost worldwide, except for Antartica.

The Humped Bladderwort is a small size, mat producing, perennial, aquatic bladderwort with bright yellow summer flowers. It grows floating in boggy waters with no roots.  It is prolific and can form large, dense, floating mats.  Its leaves are finely divided, and interspersed with small, scattered bladders, which turn dark from devouring infusoria. It prefers dark, tea colored, boggy waters rich in tannins.  It does best in full sun, growing under and among emergent aquatic plants, such as water lilies, frogbit and pickerel weed. Its flowers reach above the water from early spring to mid summer.

Native to: Alabama, Algeria, Angola, Argentina Northeast, Argentina Northwest, Arkansas, Assam, Bahamas, Bangladesh, Belize, Bolivia, Borneo, Botswana, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, British Columbia, Burkina, Cameroon, Cape Provinces, Caroline Is., Central African Repu, Chad, China South-Central, China Southeast, Colombia, Congo, Connecticut, Costa Rica, Cuba, Delaware, District of Columbia, Dominican Republic, Ecuador, Egypt, El Salvador, Ethiopia, Florida, Free State, French Guiana, Gabon, Georgia, Ghana, Greece, Guatemala, Guinea, Guinea-Bissau, Guyana, Hainan, Haiti, Hawaii, Honduras, Idaho, Illinois, India, Indiana, Iowa, Ivory Coast, Jamaica, Japan, Jawa, Kansas, Kentucky, Kenya, KwaZulu-Natal, Laos, Leeward Is., Liberia, Libya, Louisiana, Madagascar, Maine, Malaya, Mali, Manitoba, Maryland, Massachusetts, Mauritius, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Michigan, Minnesota, Mississippi, Missouri, Morocco, Mozambique, Myanmar, Namibia, Nepal, New Brunswick, New Caledonia, New Guinea, New Hampshire, New Jersey, New South Wales, New York, Nicaragua, Nicobar Is., Niger, Nigeria, North Carolina, Northern Provinces, Northern Territory, Nova Scotia, Ohio, Ontario, Oregon, Palestine, Panamá, Paraguay, Pennsylvania, Peru, Philippines, Portugal, Puerto Rico, Queensland, Québec, Rhode I., Rwanda, Senegal, Sierra Leone, South Carolina, Spain, Sri Lanka, Sudan, Sulawesi, Sumatera, Suriname, Taiwan, Tanzania, Tennessee, Texas, Thailand, Trinidad-Tobago, Tunisia, Uganda, Uruguay, Venezuela, Vermont, Vietnam, Virginia, Washington, West Virginia, Western Australia, Windward Is., Wisconsin, Zambia, Zaïre, Zimbabwe

Introduced into: Great Britain, Hungary, New Zealand North.