Thinspur butterwort
| Thinspur butterwort | ||||||||||||
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Butterwort ( Pinguicula leptoceras ) on the Timmelsjoch in South Tyrol |
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| Scientific name | ||||||||||||
| Pinguicula leptoceras | ||||||||||||
| Rchb. |
The thinspur butterwort ( Pinguicula leptoceras ), also thinsporn butterwort or white pied butterwort , is a carnivorous plant from the genus of butterflies ( Pinguicula ), in the section Pinguicula . It was first described in 1823 by Heinrich Gottlieb Ludwig Reichenbach .
description
Towards winter the plant forms a hibernacle and does not form leaves again until spring. Five to eleven fleshy, yellowish to light green, elongated-elliptical leaves form a rosette up to 8 cm in diameter, lying flat on the ground. On the surface, the leaves are sticky from the trapping secretions with which they catch small insects (e.g. sciarid gnats , ants ), but also pollen and, as soon as prey is obtained, digest them with enzymes . In June and July the butterwort blooms on a stalk up to 10 cm high, growing from the center of the rosette, blue-violet with a white throat spot in single, zygomorphic, 20 to 30 mm long, roll-spurred flowers. The egg-shaped fruit capsules that form bear plenty of fine, black seeds. The roots are white and fine. Flowering time is from May to July.
The number of chromosomes is 2n = 32.
distribution
The plant is a Alps - endemic and comes in Switzerland , Western Austria ( Carinthia , Salzburg , Tyrol , Vorarlberg ), southeastern France and northern Italy before. This species likes bright locations on moist silicate soils between 1300 and 3000 meters above sea level. It is a character species of the Caricetum davallianae. It is not found in the German Alps.
literature
- Wilhelm Barthlott , Stefan Porembski, Rüdiger Seine, Inge Theisen: Carnivores. Biology and culture of carnivorous plants. Eugen Ulmer GmbH & Co., Stuttgart 2004, ISBN 3-8001-4144-2 .
- Maria Teresa della Beffa: Alpine flowers. A comprehensive guide to finding, determining and recognizing. Kaiser, Klagenfurt 1999, ISBN 3-7043-2181-8 .
Individual evidence
- ↑ a b Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . With the collaboration of Angelika Schwabe and Theo Müller. 8th, heavily revised and expanded edition. Eugen Ulmer, Stuttgart (Hohenheim) 2001, ISBN 3-8001-3131-5 , pp. 868 .
Web links
- Pinguicula leptoceras Rchb. In: Info Flora , the national data and information center for Swiss flora . Retrieved March 27, 2016.
- Thomas Meyer: Fettkraut data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )