Plants Viewer


Pinguicular weser Butterworth


All Year

Back to Plant list or

Click the header picture to return to the homepage       

There are about 80 species of Pinguicula, commonly known as the butterworts, with many hybrids. This one I think is P.weser. Pinguiculars are a genus of carnivorous plants of the Bladderwort family (Lentibulariaceae) that use sticky, glandular leaves to lure, trap, and digest insects in order to supplement the poor mineral nutrition they obtain from their environments. Of the roughly 80 currently known species, 12 are native to Europe, 9 to North America, and some in northern Asia. Most of species are in South and Central America.
In general, butterworts grow in nutrient poor, alkaline soils, but a few species are adapted to acidic environments. This one seems to tolerate cold temperatures and produces two kinds of leaves in summer and winter.
Butterworts need habitats that are almost constantly moist or wet, at least during their carnivorous growing stage. Many Mexican species lose their carnivorous leaves, and sprout succulent leaves, or die back to onion-like "bulbs" to survive the winter drought conditions.
This one seems to tolerate some shade, cold, is in a permanent pool of water and flowering in the winter.
Butterworths are classified into four types. Heterophyllous tropical species: species that alternate between rosettes of carnivorous leaves during the warm season and compact rosettes of fleshy non-carnivorous leaves during the cool season. Examples include P. moranensis, P. gypsicola, and P. laxifolia. Homophyllous tropical species: these species produce rosettes of carnivorous leaves of roughly uniform size throughout the year, such as P. gigantea. Heterophyllous temperate species: species where the vegetative and generative rosettes differ in shape and/or size, as seen in P. lutea and P. lusitanica. Homophyllous temperate species: the vegetative and generative rosettes appear identical, as exhibited by P. alpina, P. grandiflora, and P. vulgaris.
There is very little root system of Pinguicula species. The thin, white roots serve mainly as an anchor for the plant in the soil media, which is usually poor in nutrients. Hence the need to be carnivorous
The flowers are held well above the leaves thereby preventing pollinators from becoming ensnared in the sticky leaves. The flowers range in colours from white through yellow pink, red and blur or purple.

Back to top of page