Northern man shield
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Nordic man's shield ( Androsace septentrionalis ) |
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The northern man's shield ( Androsace septentrionalis ), also known as the Nordic man's shield , man's armor or man's shield , is a species of plant in the primrose family (Primulaceae). It is very rare in Central Europe .
description
The northern man's shield grows as an annual herbaceous plant and reaches heights of 5 to 15 (rarely up to 30) cm. The inflorescence stem and the flower stalks are densely hairy, star-haired and downy. The leaves have mainly forked and simple hairs, on the surfaces they can also be completely bald. The whole plant is also covered with short, reddish stem glands. The leaves sit in a basal rosette , are lanceolate, sessile or contracted into the winged petiole. They are pointy and toothed.
The inflorescence shafts arise individually or mostly in groups from the axils of the upper leaves. The umbellate inflorescence is many-flowered and dense. The flower stalks are erect and three to six times longer than the bracts. The calyx is about 3 mm long, bell-shaped and divided up to a third. The crown is white or reddish with a yellow throat, about 4 to 5 mm long and towers above the calyx. It blooms in May and June.
The capsule is spherical, slightly longer than the calyx and contains about 5 to 10 long-edged, slightly warty seeds when the fruit is ripe .
The number of chromosomes is 2n = 20.
distribution
General distribution
Androsace septentrionalis occurs from the western Alps, central Norway to Tibet and the Himalayas. In North America, it can be found in the western United States. In Austria the Nordic man's shield is very rare and threatened with extinction, in Switzerland it is also rare.
Distribution in Germany
The northern man's shield is very rare in Germany and can only be found practically in the main area. It is threatened with extinction everywhere.
Location
The Northern Man's Shield grows in Schillergrasfluren, on dams, dunes and fields. It usually prefers dry, warm and lime-poor sandy or sandy loam soils. He is a character species of the Sedo-Scleranthetea class.
Species protection
Endangerment in Germany: Category 1: Threatened with extinction!
literature
- Wolfgang Adler, Karl Oswald, Raimund Fischer: Excursion flora of Austria. Ed .: Manfred A. Fischer . Ulmer, Stuttgart / Vienna 1994, ISBN 3-8001-3461-6 .
- August Binz : School and excursion flora for Switzerland. Taking into account the border areas. Identification book for wild growing vascular plants. 18th edition, completely revised and expanded by Christian Heitz. Schwabe, Basel 1986, ISBN 3-7965-0832-4 .
- August Garcke: Illustrated Flora. Germany and neighboring areas. Vascular cryptogams and flowering plants. Edited by Konrad von Weihe. 23rd, completely redesigned and newly illustrated edition. Paul Parey, Berlin et al. 1972, ISBN 3-489-68034-0 .
- Henning Haeupler , Thomas Muer: picture atlas of the fern and flowering plants of Germany (= the fern and flowering plants of Germany. Volume 2). Published by the Federal Agency for Nature Conservation. Ulmer, Stuttgart 2000, ISBN 3-8001-3364-4 .
- Erich Oberdorfer : Plant-sociological excursion flora. 6., revised. and supplementary edition Ulmer, Stuttgart 1990, ISBN 3-8001-3454-3 .
Individual evidence
- ^ Georg August Pritzel , Carl Jessen : The German folk names of plants. New contribution to the German linguistic treasure. Philipp Cohen, Hannover 1882, page 27, online.
- ↑ 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. 740 .
Web links
- Northern man shield. In: FloraWeb.de.
- Northern man shield . In: BiolFlor, the database of biological-ecological characteristics of the flora of Germany.
- Androsace septentrionalis L. In: Info Flora , the national data and information center for Swiss flora . Retrieved January 16, 2016.
- Thomas Meyer: Mannsschild data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )