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The genus Pinguicula contains the 83 species of butterworts, belonging to the bladderwort family (Lentibulariaceae). 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.

This article includes a list of general references, but it lacks sufficient corresponding inline citations. (November 2013)

This article is a list of the butterworts, the species of the genus Pinguicula. For general information on butterworts, please see the main article on Pinguicula.

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[1]

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 (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 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

References, external links, and further reading

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