This genus was considered to have 250 species until Peter Taylor reduced the number to 214 in his exhaustive study "The genus Utricularia - a taxonomic monograph", published by Her Majesty's Stationery Office in 1989.
Прежде род насчитывал 250 видов; в публикации 1989 года "The genus Utricularia: A taxonomic monograph" Питер Тейлор сократил число видов до 214.