The genus Pinguicula contains the 126 species of butterworts, belonging to the bladderwort family (Lentibulariaceae). Species are distributed across the subarctic and temperate Northern Hemisphere, in the tropical Americas from Mexico to Bolivia, and to southern Argentina and central and southern Chile. Over half of the species are concentrated in Mexico and Central America.
Accepted species 126 species are currently accepted by Plants of the World Online.
Casper's subgeneric classification 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 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 caryophyllacea
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 (synonym P. stolonifera) 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 causensis Pinguicula longifolia dertosensis Pinguicula longifolia reichenbachiana Pinguicula macroceras – California butterwort Pinguicula macroceras var. macroceras Pinguicula macroceras 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 jimburensis Pinguicula elongata Pinguicula ombrophilia
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
References, external links, and further reading




