Norwegian cinquefoil
Norwegian cinquefoil | ||||||||||||
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Norwegian cinquefoil ( Potentilla norvegica ) |
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Scientific name | ||||||||||||
Potentilla norvegica | ||||||||||||
L. |
The Norwegian finger herb ( Potentilla norvegica ) is a plant from the genus of Potentilla ( Potentilla ) in the family of Rosaceae (Rosaceae). It is very rare in Central Europe .
description
The Norwegian cinquefoil is an herbaceous plant that usually reaches heights of 20 to 50 (10 to 70) cm. The upright to ascending, branched stem is protruding and somewhat stiffly haired and richly leafed; it is green but turns red when exposed to intense sunlight. The alternate, long-stemmed leaves are three-fold finger-shaped, the lower ones also up to five-fold and. The leaflets are elliptical to obovate, 2 to 6 cm long, usually deep and roughly serrate to almost pinnate and loosely to fairly densely hairy. The stipules are usually four- to five-lobed and up to 3 cm long.
The terminal, panicle inflorescence contains several flowers. The hermaphroditic, radial symmetry , five-fold flowers have a diameter of about 1.2 cm. The outer sepals are longer than the sepals, they also enlarge from about 6 to 14 mm. The egg-shaped, pointed sepals enlarge from 4 to 5 mm to 8 to 10 mm when the fruit is ripe. The five petals are yellow, obovate, shallow, 3 mm wide and, with a length of 3.5 mm, usually shorter than the sepals. There are (15 to) mostly 20 stamens available. The Norwegian cinquefoil blooms from June to September.
The fruit stalk is always upright. The brownish achenes are up to 1.3 mm long.
The number of chromosomes is 2n = 70.
Occurrence
General distribution
Norwegian cinquefoil is found in the temperate and boreal zones of Eurasia and North America. It is probably not original in Western and Central Europe west of the Elbe, but introduced. Occurring south to the southern edge of the Alps. It is absent in the whole of the Mediterranean and Asia Minor .
Distribution in Germany
The Norwegian cinquefoil is a little more common only in the very west and also in the east of Germany. Otherwise rare and inconsistent.
Potentilla norvegica appears inconsistently here and there for a short time and is often only introduced. It could only be considered naturalized in the eastern part of Germany.
Location claims and socialization
Potentilla norvegica grows as a pioneer and ruderal plant on nutrient-rich, fresher, mostly lime-poor mineral and peat soils. In particular, it can be found on muddy bank areas, in bog ditches, on roadsides, in gravel pits and on train stations and ports.
The Norwegian cinquefoil occurs in Central Europe in societies of the associations Sisymbrion, Agropyro-Rumicion, Nanocyperion or Bidention.
literature
- 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 .
- 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 , Christian Heitz: School and excursion flora for Switzerland , Schwabe & Co. AG, Basel, 1986, ISBN 3-7965-0832-4
- Erich Oberdorfer : Plant-sociological excursion flora , Ulmer Verlag, Stuttgart, 1990, ISBN 3-8001-3454-3
- Christian August Friedrich Garcke : Illustrierte Flora , 1972, Paul Parey publishing house, ISBN 3-489-68034-0
- Potentilla norvegica at missouriplants.com.
Individual evidence
- ↑ a b Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . 8th edition. Verlag Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3131-5 . Page 540.
Web links
- Norwegian cinquefoil. In: FloraWeb.de.
- Profile and distribution map for Bavaria . In: Botanical Information Hub of Bavaria .
- Potentilla norvegica L. In: Info Flora , the national data and information center for Swiss flora . Retrieved November 6, 2015.
- Distribution in the northern hemisphere according to: Eric Hultén , Magnus Fries: Atlas of North European vascular plants 1986, ISBN 3-87429-263-0
- Thomas Meyer: Data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )