Utricularia caerulea

Utricularia caerulea, the blue bladderwort, is a very small to medium-sized carnivorous plant that belongs to the genus Utricularia. U. caerulea spans a wide native range, including areas in tropical Africa, Asia, and Australia. It grows as a terrestrial plant in wet, shallow soils over rock, in wet grasslands, in swamps, or near streams in open communities, mostly at lower altitudes but ascending to as much as 2100 m. It was originally described and published by Carl Linnaeus in 1753.

Synonyms
U. caerulea spans a wide distribution and is a very variable species, leading to a great deal of synonymy.
 * Calpidisca takenakai Nakai
 * Pelidnia caerulea (L.) Barnhart
 * Utricularia albiflora Griff.
 * U. albina Ridl.
 * U. baueri Benth.
 * U. bifida Macrae ex A.DC.
 * U. caerulea var. filicaulis (Wall. ex A.DC.) Haines
 * U. campestris Miq. ex C.B.Clarke
 * U. capillaris D.Don
 * U. cavalerii Stapf
 * U. charnleyensis W.Fitzg.
 * U. complanata Wall.
 * U. filicaulis Wall.
 * U. filicaulis var. papillosa Pellegr.
 * U. kerrii Craib
 * U. nivea Vahl
 * U. nivea var. rosea (Edgew.) Trimen
 * U. obscura R.Br. ex Benth.
 * U. obtusiloba Benj.
 * U. ophirensis Ridl.
 * U. paucifolia Benj.
 * U. purpurea Willd. ex Benj.
 * U. racemosa Wall.
 * U. racemosa var. filicaulis (Wall. ex A.DC.) C.B.Clarke
 * U. racemosa var. rosea (Edgew.) Thwaites
 * U. ramosa Vahl
 * U. rosea Edgew.
 * U. roseopurpurea Stapf ex Gamble
 * U. sampathii Subr. & Yogan.
 * U. sootepensis Craib
 * U. squamosa Benj.