Utricularia, commonly and collectively called the bladderworts, is a genus of carnivorous plants consisting of approximately 233 species. They occur in fresh water and wet soil as terrestrial or aquatic species across every continent except Antarctica. Utricularia are cultivated for their flowers, which are often compared with those of snapdragons and orchids, especially amongst carnivorous plant enthusiasts.
Utricularia volubilis, the twining bladderwort, is a perennial, affixed aquatic carnivorous plant that belongs to the genus Utricularia. It is endemic to the southwestern coastal region of Western Australia.
Utricularia subg. Utricularia is a subgenus in the genus Utricularia.
Utricularia subg. Polypompholyx is a subgenus in the genus Utricularia. Polypompholyx is supported as the sister group to the clade of subgenera Utricularia and Bivalvaria. Within the genus Utricularia, Polypompholyx's sections Polypompholyx, Tridentaria, and Pleiochasia are the most primitive due to their tricolporate pollen type.
Utricularia sect. Utricularia is a section in the genus Utricularia. The species in this section are suspended or affixed aquatic carnivorous plants.
Utricularia aurea, the golden bladderwort, is a medium- to large-sized suspended aquatic carnivorous plant that belongs to the genus Utricularia. It is the most common and widespread suspended aquatic species in Asia. Its native distribution ranges from India to Japan and Australia.
Utricularia ochroleuca, the yellowishwhite bladderwort, pale bladderwort, or cream-flowered bladderwort, is a small, perennial carnivorous plant that belongs to the genus Utricularia. It is usually found affixed to the substrate. U. ochroleuca is a circumboreal species and is found in North America, Asia, and Europe.
Utricularia olivacea, the piedmont bladderwort, is a very small, annual suspended aquatic carnivorous plant that belongs to the genus Utricularia. Utricularia olivacea is native to Central America, South America, the West Indies, and the eastern United States.
Utricularia radiata, the little floating bladderwort, is a medium-sized suspended aquatic carnivorous plant that belongs to the genus Utricularia. U. radiata is endemic to North America.
Utricularia sect. Orchidioides is a section in the genus Utricularia. The species in this section are small or medium-sized terrestrial or epiphytic carnivorous plants native to Central and South America. Alphonse Pyrame de Candolle originally published this section in 1844. In 1916, John Hendley Barnhart moved the section to its own genus, Orchyllium, recognizing that the species in this section are distinct. Several other botanists, including Henry Gleason, considered the treatment of these species in the genus Orchyllium valid and moved other species from Utricularia to Orchyllium. Ultimately the species were all reunited under Utricularia.
Utricularia subg. Bivalvaria is a subgenus in the genus Utricularia. It was originally described by Wilhelm Sulpiz Kurz in 1874. In Peter Taylor's 1989 monograph on the genus, he reduced the subgenus to synonym under section Oligocista, a decision that was later reversed in the light of molecular phylogenetic studies and the subgenus was restored.
Utricularia juncea, the southern bladderwort, is a small to medium-sized, probably perennial carnivorous plant that belongs to the genus Utricularia. U. juncea is native to Central, South, and North America. It grows as a terrestrial plant in marshes, swamps, and pools in shallow waters, mostly at lower altitudes. It was originally described and published by Martin Vahl in 1804.
Utricularia lateriflora, the small bladderwort, is a small to medium-sized perennial carnivorous plant that belongs to the genus Utricularia. U. lateriflora is endemic to Australia and can be found in New South Wales, Queensland, South Australia, Tasmania, and Victoria. It grows as a terrestrial plant in sandy or peaty soils in heathland at lower altitudes. It was originally described and published by Robert Brown in 1810.
Utricularia sect. Aranella is a section in the genus Utricularia. The ten species in this section are small terrestrial carnivorous plants native to tropical South America with one species also extending into tropical Africa. John Hendley Barnhart originally described and published this section in 1913 as a separate genus, Aranella. Sadashi Komiya revised the genus Utricularia in a 1973 taxonomic review and placed Barnhart's genus at the rank of subgenus within Utricularia. Peter Taylor then published his taxonomic monograph of Utricularia in 1986 in which he reduced Komiya's subgenus to the rank of section, placing it within subgenus Utricularia. More recent phylogenetic data and revisions have reinstated subgenus Bivalvaria and have placed this section within it.
Utricularia sect. Calpidisca is a section in the genus Utricularia. The ten species in this section are small terrestrial carnivorous plants native to Africa with one species extending its range into Mexico and another that extends into Asia as far as India. John Hendley Barnhart originally described and published this section in 1916 as a separate genus, Calpidisca. Sadashi Komiya revised the genus Utricularia in a 1973 taxonomic review and placed Barnhart's genus at the rank of section within Utricularia. Peter Taylor then published his taxonomic monograph of Utricularia in 1986 in which he placed Komiya's section within subgenus Utricularia. More recent phylogenetic data and revisions have reinstated subgenus Bivalvaria and have placed this section within it.
Utricularia sect. Oligocista is the largest section in the genus Utricularia. The 42 species in this section are small to medium-sized terrestrial carnivorous plants native throughout the tropics, with six species in the Americas, ten in Africa, five in Australia, and the remainder in Asia, with 17 mostly native to peninsular India. Alphonse Pyrame de Candolle originally described and published this section in 1844. Peter Taylor published his taxonomic monograph of Utricularia in 1986, in which he placed this section within subgenus Utricularia. More recent phylogenetic data and revisions have reinstated subgenus Bivalvaria and have placed this section within it.
Utricularia bifida is a small annual carnivorous plant that belongs to the genus Utricularia. It is native to Asia and Oceania and can be found in Australia, Bangladesh, Burma, Cambodia, China, Guam, India, Indonesia, Japan, Korea, Laos, Malaysia, Nepal, New Guinea, Palau, the Philippines, Sri Lanka, Thailand, and Vietnam. U. bifida grows as a terrestrial plant in damp soils and in rice fields. It was originally described and published by Carl Linnaeus in 1753.
Utricularia sect. Phyllaria is a section in the genus Utricularia. The sixteen species in this section are small or very small lithophytic or epiphytic carnivorous plants native to the mountains of Asia, ranging from India to China and New Guinea. One species, Utricularia striatula, is an exception and is widespread in much of the Old World tropics. Wilhelm Sulpiz Kurz originally described and published this section as Utricularia subg. Phyllaria in 1874. Franciszek Kamieński reviewed the genus in 1891 and reduced Kunz's subgenus to a section. Later botanists, including Peter Taylor, agreed with Kamieński's assessment. In Taylor's 1986 revision of the genus, he placed this section in subgenus Utricularia. Later molecular data resulted in the revision of Taylor's treatment, reinstating subgenus Bivalvaria and placing this section within it.
Utricularia sect. Setiscapella is a section in the genus Utricularia that contains small or medium-sized terrestrial or subaquatic species. Most plants in this section are endemic to Central and South America with the exceptions of Utricularia stanfieldii, which is endemic to Africa, and Utricularia subulata which is almost pantropical. It was first described by John Hendley Barnhart in 1916 at the rank of genus. In 1973, Sadashi Komiya reduced the genus to a subgenus of the genus Utricularia. In his 1986 monograph on the genus, Peter Taylor reorganized the genus and reduced this to the rank of section.
