Rush-leaved sedge

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Rush-leaved sedge
Infructescence of the rush-leaved sedge (Carex maritima)

Infructescence of the rush-leaved sedge ( Carex maritima )

Systematics
Monocots
Commelinids
Order : Sweet grass (Poales)
Family : Sourgrass family (Cyperaceae)
Genre : Sedges ( Carex )
Type : Rush-leaved sedge
Scientific name
Carex maritima
Gunn.

The rush-leaved sedge ( Carex maritima ), also called inwardly curved sedge , is a species of the genus of sedges ( Carex ) within the sour grass family (Cyperaceae).

description

Vegetative characteristics

The rush-leaved sedge is a perennial herbaceous plant that only reaches heights of 2 to 18 centimeters. It has a long rhizome that creeps underground . The stems are usually curved to the side and with a diameter of up to 2 millimeters are either round or indistinctly triangular. The leaf blades are stiff and rush-shaped and usually considerably longer than the stem and only 1 to 2 millimeters wide.

Generative characteristics

The flowering period extends from July to August. The inflorescence is about 5 to 18 millimeters long and 5 to 13 millimeters wide, spherical or triangular, pale red-brown head made of three to five spikelets. The husks of the female flowers are brown, white-skinned on the edge and have a green central nerve. The tubes are pointed, 3 to 5 millimeters long, with a smooth, crooked beak and initially yellow-brown and when ripe black-brown. The female flowers have two stigmas. The fruit is shiny.

The number of chromosomes is 2n = 60.

Occurrence

Their distribution area extends from Northern Europe and North Africa over the Caucasus and Siberia to China, to Greenland and North and South America. In Central Europe, the Binsenblättrige Sedge one on the high Alps at altitudes from 1200 to 2900 meters limited ice age relic , it rarely rises to 700 meters down. It is usually rare and absent in Germany. The rush-leaved sedge was found in Denmark on some North Sea islands and on Jutland until the 19th century .

The rush-leaved sedge thrives on sandy, neutral to slightly acidic primary rock soils, on glacier moraines, in brook gravel and on rocks. It is a character species of the Caricetum maritima from the association Caricion bicoloris-atrofuscae.

Taxonomy

Carex maritima was first published in 1776 by Johan Ernst Gunnerus . The specific epithet maritima means maritime and refers to occurrences near the sea, as they are possible in the far north. Synonyms for Carex maritima Gunn. are: Carex incurva Lightf. , Carex juncifolia All. , Carex banata Sm. , Carex melanocystis É.Desv. , Carex psammogaea Steud. , Carex misera Phil. Nom. illeg., Carex stenophylla L.Thienem. ex Boott nom. illeg., Carex oligantha Phil. nom. illeg., Carex melanocystis var. misera Kük. , Carex bucculenta V.I.Krecz. , Carex camptotropa V.I.Krecz. , Carex jucunda V.I.Krecz. , Carex orthocaula V.I.Krecz. , Carex psychroluta V.I.Krecz. , Carex setina (Christ) VIKrecz. , Carex transmarina V.I.Krecz. , Carex amphilogos K. Koch .

literature

  • Wolfram Schultze Motel: Cyperaceae. In: Wolfram Schultze-Motel (Hrsg.): Illustrierte Flora von Mitteleuropa. Pteridophyta, Spermatophyta . Founded by Gustav Hegi. 3rd, completely revised edition. Volume II. Part 1: Angiospermae: Monocotyledones 2 (Cyperaceae - Juncaceae) . Paul Parey, Berlin / Hamburg 1980, ISBN 3-489-54020-4 , pp. 111–112 (published in deliveries 1967–1980).
  • Arthur Oliver Chater : Carex. In TG Tutin, VH Heywood, NA Burges, DM Moore, DH Valentine, SM Walters, DA Webb (eds.): Flora Europaea . Volume 5: Alismataceae to Orchidaceae (Monocotyledones) . Cambridge University Press, Cambridge 1980, ISBN 0-521-20108-X , pp. 300 (English, limited preview in Google Book Search).
  • 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. 250 .

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.  174 .
  2. ↑ Rafaël Govaerts (ed.): Carex maritima. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved April 19, 2020.

Web links

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