Thuringian cinquefoil

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Thuringian cinquefoil
Thuringian cinquefoil (Potentilla thuringiaca)

Thuringian cinquefoil ( Potentilla thuringiaca )

Systematics
Eurosiden I
Order : Rose-like (rosales)
Family : Rose family (Rosaceae)
Subfamily : Rosoideae
Genre : Finger herbs ( potentilla )
Type : Thuringian cinquefoil
Scientific name
Potentilla thuringiaca
Bernh.

The Thuringian cinquefoil ( Potentilla thuringiaca ), also called arm-flowered cinquefoil , is a species of the genus cinquefoil ( Potentilla ) within the rose family (Rosaceae).

description

Foliage leaves
Illustration from storm

Vegetative characteristics

The Thuringian cinquefoil is a perennial herbaceous plant that reaches heights of 10 to 40 centimeters. The stem is forked and usually arching upwards, rarely it is upright and almost simple.

The basal, divided, hand-shaped leaves have six to nine (but mostly seven) partial leaves, the partial leaves are obovate, with a length of 2 to 5 centimeters, wedge-shaped at the base and have seven to ten protruding teeth on each side. They are hairy on both sides.

Generative characteristics

The flower stem is long, quite strong and stands upright even at fruit time. The flowers are yellow and 1.5 to 2 centimeters in diameter.

The number of chromosomes is 2n = 42.

Occurrence and endangerment

The total distribution area of Potentilla thuringiaca is still insufficiently known, for example very rarely in Switzerland . However, the main range seems to be from southeast Europe to western Russia and north to southern Scandinavia . It can also be found in the Caucasus .

The Thuringian cinquefoil occurs in Germany only from southern Thuringia via the Grabfeld (northern Bavaria) and the central Maing area to the Steigerwald (Franconia). In the Red List of Endangered Plant Species in Germany, Potentilla thuringiaca was classified in category 3 = "endangered" in 1996.

Potentilla thuringiaca grows in sunny bushes, on the edges of forests and roads, and in light oak and pine forests. It prefers moderately dry, nutrient- and base-rich, lime-poor loam and clay soils. In Central Europe it is a character species of the Geranion sanguinei association, but also occurs in the Potentillo-Quercetum from the Potentillo-Quercion petraeae association.

Taxonomy

A synonym for Potentilla thuringiaca Bernh. is Potentilla parviflora Gaud.

literature

  • Henning Haeupler, Thomas Muer: picture atlas of the fern and flowering plants of Germany . Ed .: Federal Agency for Nature Conservation (=  The fern and flowering plants of Germany . Volume 2 ). Eugen Ulmer, Stuttgart (Hohenheim) 2000, ISBN 3-8001-3364-4 .
  • Henning Haeupler, Thomas Muer: picture atlas of the fern and flowering plants of Germany . Ed .: Federal Agency for Nature Conservation (=  The fern and flowering plants of Germany . Volume 2 ). Eugen Ulmer, Stuttgart (Hohenheim) 2000, ISBN 3-8001-3364-4 .
  • Christian Heitz: School and excursion flora for Switzerland. Taking into account the border areas. Identification book for wild growing vascular plants . Founded by August Binz. 18th completely revised and expanded edition. Schwabe & Co., Basel 1986, ISBN 3-7965-0832-4 .
  • Erich Oberdorfer : Plant-sociological excursion flora . With the collaboration of Theo Müller. 6th, revised and expanded edition. Eugen Ulmer, Stuttgart (Hohenheim) 1990, ISBN 3-8001-3454-3 .
  • Konrad von Weihe (ed.): Illustrated flora. Germany and neighboring areas. Vascular cryptogams and flowering plants . Founded by August Garcke. 23rd edition. Paul Parey, Berlin / Hamburg 1972, ISBN 3-489-68034-0 .

Individual evidence

  1. ↑ 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.  540 .

Web links

Commons : Thuringian cinquefoil ( Potentilla thuringiaca )  - album with pictures, videos and audio files