Pinguicula vulgaris, the common butterwort, is a perennial carnivorous plant in the bladderwort family, Lentibulariaceae.
| Pinguicula vulgaris | |
|---|---|
Conservation status | |
Least Concern (IUCN 3.1) | |
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Lamiales |
| Family: | Lentibulariaceae |
| Genus: | Pinguicula |
| Species: | P. vulgaris |
| Binomial name | |
| Pinguicula vulgaris | |
It grows to a height of 3–16 cm, and is topped with a purple, and occasionally white, flower that is 15 mm or longer, and shaped like a funnel. This butterwort grows in damp environments such as bogs and swamps, in low or subalpine elevations.[1] Being native to environments with cold winters, they produce a winter-resting bud (hibernaculum). There are three forms originating from Europe: P. vulgaris f. bicolor which has petals that are white and purple; P. vulgaris f. albida which has all white petals; and P. vulgaris f. alpicola which has larger flowers.[2] The taxonomic status of these forms is not universally recognised - see e.g. The Plant List.[3]
Common butterwort is an insectivorous plant. Its leaves have glands that excrete a sticky fluid which traps insects to its leaves, those glands also produce digestive enzymes which work to consume the insects externally.[4] This serves as a way for the plant to access a source of nitrogen as they generally grow in soil that is acidic and low in nutrients, such as bogs.[4][5]
It has a generally circumboreal distribution, being native to almost every country in Europe as well as Russia, Canada, and the United States.[5][6] It is generally found growing in places such as bogs, fens, alvars, and other areas with limestone bedrock and alkaline waters.[5]
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