List of Pinguicula species
The genus Pinguicula contains the 83 species of butterworts, belonging to the bladderwort family. It has a natural distribution across most of the Northern Hemisphere, though over half of the species are concentrated in Mexico and Central America. Siegfried Jost Casper systematically divided them into three subgenera with 15 sections. Subsequent phylogenetic research showed that many of these groupings are polyphyletic, but they are used below.Subgenus ''Isoloba''
Section ''Agnata''
- Pinguicula agnata
- Pinguicula albida
- Pinguicula benedicta
- Pinguicula cubensis
- Pinguicula filifolia
- Pinguicula gigantea
- Pinguicula infundibuliformis
- Pinguicula lithophytica
- Pinguicula pilosa
Section ''Cardiophyllum''
- Pinguicula crystallina
- *Pinguicula crystallina subsp. hirtiflora
- Pinguicula habilii
Section ''Discoradix''
- Pinguicula casabitoana
- Pinguicula lignicola
Section ''Heterophyllum''
- Pinguicula acuminata
- Pinguicula conzattii
- Pinguicula heterophylla
- Pinguicula imitatrix
- Pinguicula kondoi
- Pinguicula mirandae
- Pinguicula parvifolia
- Pinguicula rotundiflora
Section ''Isoloba''
- Pinguicula caerulea – blue-flower butterwort
- Pinguicula ionantha – Godfrey's butterwort, violet butterwort
- Pinguicula lilacina
- Pinguicula lusitanica – pale butterwort
- Pinguicula lutea – yellow butterwort
- Pinguicula planifolia – Chapman's butterwort
- Pinguicula primuliflora – southern butterwort
- Pinguicula pumila – small butterwort
- Pinguicula sharpii
- Pinguicula takakii
Subgenus ''Pinguicula''
Section ''Crassifolia''
- Pinguicula ehlersiae
- Pinguicula esseriana
- Pinguicula debbertiana
- Pinguicula jaumavensis
Section ''Homophyllum''
- Pinguicula greenwoodii
- Pinguicula jackii
- Pinguicula lippoldii
- Pinguicula toldensis
Section ''Longitubus''
- Pinguicula calderoniae
- Pinguicula crassifolia
- Pinguicula hemiepiphytica
- Pinguicula laueana
- Pinguicula utricularioides
Section ''Nana''
- Pinguicula villosa – hairy butterwort
''Section ''Orcheosanthus''
- Pinguicula colimensis
- Pinguicula cyclosecta
- Pinguicula elizabethiae
- Pinguicula gypsicola
- Pinguicula macrophylla
- Pinguicula mesophytica
- Pinguicula moctezumae
- Pinguicula moranensis
- Pinguicula oblongiloba
- Pinguicula orchidioides
- Pinguicula zecheri
Section ''Orchidioides''
- Pinguicula laxifolia
Section ''Pinguicula''
- Pinguicula balcanica – Balkanian butterwort
- *Pinguicula balcanica var. tenuilaciniata
- Pinguicula corsica
- Pinguicula grandiflora – large-flowered butterwort
- *Pinguicula grandiflora subsp. rosea
- Pinguicula leptoceras
- Pinguicula longifolia – long-leaved butterwort
- *Pinguicula longifolia subsp. causensis
- *Pinguicula longifolia subsp. dertosensis
- *Pinguicula longifolia subsp. reichenbachiana
- Pinguicula macroceras – California butterwort
- *Pinguicula macroceras var. macroceras
- *Pinguicula macroceras subsp. nortensis
- Pinguicula mundi
- Pinguicula nevadensis
- Pinguicula poldinii
- Pinguicula vallisneriifolia
- Pinguicula vulgaris – common butterwort
Subgenus ''Temnoceras''
Section ''Ampullipalatum''
- Pinguicula antarctica
- Pinguicula calyptrata
- Pinguicula chilensis
- Pinguicula involuta
- Pinguicula elongata
Section ''Micranthus''
- Pinguicula algida
- Pinguicula alpina – Alpine butterwort
- Pinguicula ramosa
- Pinguicula variegata
Section ''Temnoceras''
- Pinguicula clivorum
- Pinguicula crenatiloba
- Pinguicula emarginata
- Pinguicula gracilis
- Pinguicula immaculata
''Incertae sedis''
- Pinguicula chuquisacensis
