Glacier cinquefoil

from Wikipedia, the free encyclopedia
Glacier cinquefoil
Glacier cinquefoil (Potentilla frigida)

Glacier cinquefoil ( Potentilla frigida )

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

The glacier cinquefoil ( Potentilla frigida ) is a species of the genus cinquefoil ( Potentilla ) within the rose family (Rosaceae).

description

Illustration from Atlas of Alpine Flora
Habit, leaves and flowers

Vegetative characteristics

The glacier cinquefoil is a perennial herbaceous plant . The rhizome is covered with red-brown leaf remains. The above-ground parts of the plant are gray-green and have a silky sheen. Yellowish glands sit between the long, slightly protruding gray hair. The upright or ascending stem is 5 to 10 centimeters high, quite thick, one to three leaved. The basal leaves are tripartite and short or long stalked. The stipules are membranous, broad and reddish brown. The top stem leaf is often simple.

Generative characteristics

The flowering period extends from July to August. There are one to three, rarely up to five flowers per stem. The hermaphroditic flowers only open halfway. The outer calyx is often significantly shorter than the calyx. The sepals are about 5 millimeters long, often reddish and shaggy. The petals are usually shorter than the calyx and yellow in color. The 20 stamens are very short.

The number of chromosomes is 2n = 28.

ecology

The glacier cinquefoil is a hemicryptophyte .

Occurrence

The glacier cinquefoil is found in the Pyrenees and in the Alps from Dauphiné to Styria . In Germany there is no glacier cinquefoil. The glacier cinquefoil is not considered common.

Locations and distribution in Central Europe

In the northern Limestone Alps it is probably missing everywhere; it is rare in the southern chains of the Central Alps ; in the northern central Alps it is absent in some areas and is very rare there; In the Southern Alps , it is only found on lime-free or decalcified subsoil, here too it is rare.

The glacier cinquefoil needs lime and nutrient-poor, dry and stony subsoil in an alpine climate. It grows on dry rock slopes with little lime and mountain meadows at altitudes of over 2500 to 3100 meters.

It inhabits steep slopes and ridges exposed to the wind, and more rarely dry, gutted and short-grassed rocky slopes and mountain meadows. It is a species of character of the order Caricetalia curvulae.

Because glacier cinquefoil particularly thrives in locations that remain free of snow in winter.

swell

literature

  • Xaver Finkenzeller, Jürke Grau: 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 2, ISBN 3 440-08048-X.

Individual evidence

  1. ↑ 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 , p. 540.

Web links

Commons : Glacier cinquefoil ( Potentilla frigida )  - Collection of images, videos and audio files