Contains 6 accepted taxa overall.
Characteristics
Classification
Citation
PINGUICULA Linnaeus, Sp. Pl. 17. 1753.
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TYPE: Pinguicula vulgaris Linnaeus Lectotypified by Britton & A. Brown, Ill. Fl. N. U.S., ed. 2. 3: 225. 1913.
Species
| Scientific Name | Common Name | Herbarium Specimens | Status | Photos |
|---|---|---|---|---|
| Pinguicula caerulea | BLUEFLOWER BUTTERWORT | Native Threatened-State OBL (NWPL) OBL (DEP) | ||
| Pinguicula ionantha | VIOLET BUTTERWORT; PANHANDLE BUTTERWORT | Native Rare-State Threatened-US OBL (NWPL) OBL (DEP) | ||
| Pinguicula lutea | YELLOW BUTTERWORT; YELLOW-FLOWERED BUTTERWORT | Native Threatened-State OBL (NWPL) OBL (DEP) | ||
| Pinguicula planifolia | CHAPMAN'S BUTTERWORT; SWAMP BUTTERWORT | Native Threatened-State OBL (NWPL) OBL (DEP) | ||
| Pinguicula primuliflora | SOUTHERN BUTTERWORT; PRIMROSE-FLOWERED BUTTERWORT | Native Rare-State OBL (NWPL) OBL (DEP) | ||
| Pinguicula pumila | SMALL BUTTERWORT | Native OBL (NWPL) OBL (DEP) |
Identification Key
1. Basal leaf rosette (0.8)1-4(6) cm wide; corolla (4)8-18(22) mm wide, the hairy palate 1.5-2(2.5) mm long, included or barely exserted from the tube
1. Basal leaf rosette 4-15 cm wide; corolla 18-35 mm wide, the hairy palate (1.5)3-10 mm long, conspicuously exserted from the tube
2
2. Corolla yellow, rarely white (veins in tube and spur reddish to purplish), lobe
2. Corolla violet, pink, blue, to white, sometimes darker or yellow in the throat or tube
3
3. Scape non-glandular short-villous proximally for 1-4(5) cm, then gradually becoming sparsely to densely glandular distally; corolla lobes with dark blue veins throughout; palate white to greenish
3. Scape glabrous or sparsely to glandular-pubescent proximally, sparsely to densely glandular-pubescent distally; corolla lobes with obscure veins (sometimes dark and conspicuous only at the base of the lobe); palate yellow to brownish
4
4. Leaves usually reddish when fresh, especially on the margins; corolla lobe ca. 2 times longer than wide, the sinus ⅓-½ the lobe length
4. Leaves green when fresh; corolla lobe 0.9-1.4 times longer than wide, the sinus to ⅓ the lobe length
5
5. Plants often singular or few overlapping together; corolla lobes longer than wide, with a ring of pink to dark purple at the base of the lobes, the tube similarly colored but sometimes paler;
5. Plants often in dense overlapping patches, forming new plants from the leaf tips (gemmiparous); corolla lobes wider than or subequal to the length, with a ring of white at the base of the lobes (sometimes the lobes also white), yellow in the tube
Genus Synonyms
| Synonym | Full Citation | Basionym | Type |
|---|---|---|---|
| Isoloba | Isoloba Rafinesque, Fl. Tellur. 4: 58. 1838 ("1836"). | TYPE: Non designatus. |