Yellow

from Wikipedia, the free encyclopedia
Yellow
Yellow fling (Sibbaldia procumbens)

Yellow fling ( Sibbaldia procumbens )

Systematics
Eurosiden I
Order : Rose-like (rosales)
Family : Rose family (Rosaceae)
Subfamily : Rosoideae
Genre : Yellowblings ( Sibbaldia )
Type : Yellow
Scientific name
Sibbaldia procumbens
L.

The yellow fling ( Sibbaldia procumbens ) is a species of the genus Sibbaldia in the subfamily Rosoideae within the rose family (Rosaceae).

description

Illustration from storm
blossoms
Habitus

Vegetative characteristics

The yellow fling is a perennial herbaceous plant that reaches stature heights of only 1 to 4, rarely up to 10 or 20 centimeters. It is a lawn-forming plant. The rhizome is short, woody, branched and encased by dead stipules and remnants of petioles.

The leaves are divided into a petiole and a leaf blade. The petiole is 10 to 50 millimeters long and hairy lying forward. The threefold leaf blade is gray-green on top, blue-green on the underside and hairy here a little more densely. The leaflets are 5 to 20 millimeters long and obovate with a wedge-shaped base. The terminal leaflet ends in front with three rounded, blunt teeth of approximately the same length. The lateral leaflets usually have an oblique base at the base. The stipules are 3 to 6 millimeters long and fused with the petiole.

Generative characteristics

The flowering period begins immediately after the snow melts and is between July and September. Two to six, rarely up to ten flowers are grouped in a dense trugdoldigen inflorescence and have simple bracts at the base.

The hermaphroditic flowers are radial symmetry . The outer sepals are narrowly lanceolate and slightly shorter than the approximately 3 millimeter long lanceolate sepals. The petals are greenish yellow, narrow, obovate and 1.5 to 2 millimeters long. There are usually five stamens present. The ovary is finely wrinkled.

The two to five nuts are egg-shaped and shiny.

The number of chromosomes is 2n = 14.

Occurrence

This arctic-alpine species is circumpolar. Their distribution area includes North America, south to California , Greenland , Iceland , Svalbard , Scotland , Scandinavia, Northern Russia. There are, however, further separate disjoint occurrences in the Alps, Pyrenees, Tatras , other mountains of southern Europe to the Caucasus , Central Asia and the Himalayas to Kamchatka and the Bering Strait .

The yellow fling likes to settle in acidic, more or less loamy, constantly moist locations in the alpine level, especially in snow valleys that are covered by snow for 9 to 10 months. It is a character species of the Salicion herbaceae association. It rises in the Engadin on Piz Languard to an altitude of 3255 meters and in the Graian Alps on Monte Emilius up to 3300 meters. In the Allgäu Alps, it grows at altitudes between 1700 and 2380 meters. In the Vosges it grows at altitudes from 1200 to 1360 meters.

Taxonomy

Sibbaldia procumbens was first published by Carl von Linné . A synonym for Sibbaldia procumbens L. is Potentilla procumbens (L.) Clairv. The generic name Sibbaldia honors Robert Sibbald (1641-1722), professor of medicine in Edinburgh , who published a first account of the flora of Scotland in 1684.

literature

Individual evidence

  1. ^ 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.  542-543 .
  2. ↑ Erhard Dörr, Wolfgang Lippert : Flora of the Allgäu and its surroundings. Volume 2, IHW-Verlag, Eching near Munich, 2004, ISBN 3-930167-61-1 , pp. 77-78.

Web links

Commons : Gelbling ( Sibbaldia procumbens )  - Collection of images, videos and audio files