Rock sedge

Rock sedge
	Rock sedge ( Carex rupestris )
Systematics
	Monocots
	Commelinids
Order :	Sweet grass (Poales)
Family :	Sourgrass family (Cyperaceae)
Genre :	Sedges ( Carex )
Type :	Rock sedge
Scientific name
	Carex rupestris
	Alles.

The rock sedge ( Carex rupestris ) is a species of the genus Seggen ( Carex ) within the sour grass family (Cyperaceae). It is distributed with two subspecies in the northern hemisphere in Eurasia and North America .

description

Inflorescences with only one spikelet each

Rock sedge ( Carex rupestris ) in the illustration on the right

The rock sedge grows as a perennial herbaceous plant and reaches heights of 5 to 15 centimeters. It forms runners . The upright or arching stalk is indistinctly triangular and slightly rough under the inflorescence; it is at least 20% longer than the leaves. The 1 to 1.5 millimeter wide, flat leaves with rough edges are often curved or rolled up at the tips and often dead in the upper third.

The flowering period extends from June to July. The inflorescence is a single, 1 to 1.5 centimeter long, terminal spikelet . The tubes are often stunted and atypical, when they are well developed they are 2.5 to 4 millimeters long and suddenly contracted into a very short beak . There are three scars.

The number of chromosomes is 2n = 50 or 52.

Occurrence and ecology

The distribution area of the rock sedge are the subarctic and temperate zones of the northern hemisphere. It is rare in the Central European Alps ; it is absent there even in the limestone Alps in larger areas. It often occurs in smaller stocks at its localities.

It is extremely rare in Germany .

The rock sedge thrives on calcareous , well-ventilated, mostly stony, shallow soils with good humus management . It settles at altitudes between 1500 and 3000 meters.

It colonizes gappy, alpine lawns and meadows , but it also goes into rock crevices and on mountain ridges . Although the rock sedge has short runners , it avoids rubble that is still in motion. On the other hand, it does not have the best living conditions in dense lawns. Usually it disappears quickly there. Therefore, locations that appeal to her in Central Europe are not too common. With it, however, vegetative reproduction through runners plays a greater role than sexual reproduction through seeds . The foothills penetrate into fine rock crevices as well as into the smallest gaps between fixed rock debris. It thrives particularly in the Elynetum or in the Caricetum firmae and is a character species of the class Carici rupestris-Kobresietea.

Systematics and taxonomy

Carex rupestris was first published in 1785 by Carlo Allioni .

One can distinguish the following subspecies:

Carex rupestris subsp. altimontana T.V. Ebel : It occurs in the Altai .
Carex rupestris subsp. rupestris : It occurs in the subarctic and temperate areas of the northern hemisphere.

swell

Carex rupestris All., Rock sedge. In: FloraWeb.de.

Individual evidence

↑ ^a ^b ^c Carex rupestris All., Rock-Sedge. In: FloraWeb.de.
↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q Dietmar Aichele, Heinz-Werner Schwegler: The flowering plants of Central Europe . 2nd Edition. tape 5 : Swan flowers to duckweed plants . Franckh-Kosmos, Stuttgart 2000, ISBN 3-440-08048-X , p. 244 .
↑ ^a ^b ^c ^d Henning Haeupler, Thomas Muer: picture atlas of the fern and flowering plants of Germany . Published by the Federal Agency for Nature Conservation (= The fern and flowering plants of Germany . Volume 2 ). 2nd corrected and enlarged edition. Eugen Ulmer, Stuttgart (Hohenheim) 2007, ISBN 978-3-8001-4990-2 .
↑ ^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. 168 .
↑ ^a ^b ^c ^d Rafaël Govaerts (Ed.): Carex - data sheet at World Checklist of Selected Plant Families of the Board of Trustees of the Royal Botanic Gardens, Kew. Last accessed on October 14, 2016.

Web links

Commons : Rock Sedge ( Carex rupestris ) - Collection of images, videos and audio files

Rock sedge . In: BiolFlor, the database of biological-ecological characteristics of the flora of Germany.
Profile and distribution map for Bavaria . In: Botanical Information Hub of Bavaria .
Carex rupestris All., Map for distribution in Switzerland In: Info Flora , the national data and information center for Swiss flora .
Distribution in the northern hemisphere from: Eric Hultén, Magnus Fries: Atlas of North European vascular plants. 1986, ISBN 3-87429-263-0 at Den virtuella floran. (swed.)
Thomas Meyer: Data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )
Photos: [1] , [2] , [3] , [4] , [5] , [6] , [7]

[FloraWeb-1] Carex rupestris All., Rock-Sedge. In: FloraWeb.de.

[Aichele_2000-2] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q Dietmar Aichele, Heinz-Werner Schwegler: The flowering plants of Central Europe . 2nd Edition. tape 5 : Swan flowers to duckweed plants . Franckh-Kosmos, Stuttgart 2000, ISBN 3-440-08048-X , p. 244 .

[Bildatlas-3] Henning Haeupler, Thomas Muer: picture atlas of the fern and flowering plants of Germany . Published by the Federal Agency for Nature Conservation (= The fern and flowering plants of Germany . Volume 2 ). 2nd corrected and enlarged edition. Eugen Ulmer, Stuttgart (Hohenheim) 2007, ISBN 978-3-8001-4990-2 .

[Oberdorfer2001-4] 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. 168 .

[WCSP-5] Rafaël Govaerts (Ed.): Carex - data sheet at World Checklist of Selected Plant Families of the Board of Trustees of the Royal Botanic Gardens, Kew. Last accessed on October 14, 2016.