Whole-leaved primrose
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Whole-leaved primrose ( Primula integrifolia ) |
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The whole-leaved primrose ( Primula integrifolia ) is a species of plant that belongs to the genus of primroses ( Primula ).
description
The perennial herbaceous plant reaches heights of 1 to 5 centimeters. It is densely covered with colorless glandular hairs up to 0.75 millimeters long, especially on the edges of the leaves, on the stem, as well as on the bracts and sepals, but still hardly sticky. The often sessile foliage leaves are hidden with entire margins or wavy, soft, grass-green, egg-shaped, pointed or rounded.
The short stems are about as long as the leaves and have one to three sessile or short-stalked flowers. The bracts are narrow-lanceolate and 5 to 10 millimeters long. The calyx is reddish and has short, blunt teeth. The pink to red-violet colored crown has a diameter of 15 to 20 millimeters and has incised corolla lobes. The throat is shaggy due to white glandular hair.
The flowering period extends from May to August.
The number of chromosomes is 2n = 62, 66, 68 or 70.
Occurrence
The distribution area extends in the Alps from the Arlberg and Tonale to the west to Savoy and also includes the Pyrenees . The species occurs mostly alpine at altitudes from 1900 to 2700 meters on low-lime, moist soils in snow valleys and hollows.
Locations and distribution in Central Europe
The whole-leaved primrose needs acidic, moderately alkaline and fairly low-nitrogen, cool soil that can be covered with snow for a long time.
It colonizes small snow valleys and damp spots on acidic alpine mats. It thrives above all in Primulae-Caricetum curvulae, but also in societies of the Salicion herbaceae.
In the central Alps it occurs scattered, in the western southern Alps and in the western northern chains it is rare. It is absent in the Eastern Alps. It rises to about 3000 m.
literature
- Gunter Steinbach (Ed.): Alpine flowers (Steinbach's natural guide). Mosaik Verlag GmbH, Munich 1996, ISBN 3-576-10558-1 .
- Dietmar Aichele, Heinz-Werner Schwegler: The flowering plants of Central Europe , Franckh-Kosmos-Verlag, 2nd revised edition 1994, 2000, Volume 3, ISBN 3 440-08048-X
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. 738 .
Web links
- Primula integrifolia L., whole-leaved primrose. In: FloraWeb.de.
- Primula integrifolia L. In: Info Flora , the national data and information center for Swiss flora . Retrieved January 16, 2016.
- Thomas Meyer: Primrose data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )