Pairas sedge

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Pairas sedge
Pairas sedge (Carex pairae)

Pairas sedge ( Carex pairae )

Systematics
Monocots
Commelinids
Order : Sweet grass (Poales)
Family : Sourgrass family (Cyperaceae)
Genre : Sedges ( Carex )
Type : Pairas sedge
Scientific name
Carex pairae
FW Schulz

Pairas sedge ( Carex pairae ), also known as Narrow Carex spicata referred to, a species from the genus of sedge ( Carex ) within the family of Cyperaceae (Cyperaceae).

description

Habitus
Ligule
Inflorescences of the same age

Vegetative characteristics

Pairas sedge is a perennial herbaceous plant and reaches heights of 30 to 80 centimeters. The root bark is brown. It grows tightly clumpy. The mostly rigid, upright stalk is triangular and slightly rough.

The arch of the ligule attachment is hardly higher than it is wide. The leaf blades are 2 to 3 millimeters wide, smooth or slightly rough and usually dark green in color.

Generative characteristics

The flowering period is mainly from May to July. Pairas sedge is a sedge of the same age. The three to ten spikelets are more or less close together in a 2 to 3 centimeter long inflorescence . The lowest three spikelets can be arranged at intervals of 0.5 to 1 centimeter, very rarely the lowest spikelet is further away. All spikelets are oval and spread sharply at the fruiting time due to the protruding fruit tubes. They each contain male flowers in the upper part and female flowers in the lower part.

The husks are oval to lanceolate in shape and colored pale brown. They are keeled greenish. The broad, egg-shaped fruit sacs are about 3 to 3.5 millimeters long. They are usually long beaked and have two scars.

The number of chromosomes is 2n = 58.

Similar species

The Pairas sedge ( Carex pairae ) differs from the very similar chunky sedge ( Carex muricata ) by its somewhat smaller fruit sacs and pale brown husks. The similarly similar prickly sedge ( Carex spicata ) has a significantly higher ligule arch as well as cork-like filled fruit sacs in the lower part.

Occurrence

This article or the following section is not adequately provided with supporting documents ( e.g. individual evidence ). Information without sufficient evidence could be removed soon. Please help Wikipedia by researching the information and including good evidence.

Nothing is known exactly about the overall distribution. However, Pairas sedge seems to be found scattered throughout Central Europe.

According to the World Checklist of Selected Plant Families , Carex pairae occurs in Macaronesia , in northwest Africa and in Europe as far as central Turkey .

Carex pairae grows on the edges of forests and forest roads, but also in grasslands . It prefers fresh, nutrient-rich soils.

Taxonomy

The first description of Carex pairae in 1868 by Friedrich Wilhelm Schultz in Flora 51, S. 303. The epithet pairae honors the Alsatian botanist Michel Paira (* 1823). Synonyms for Carex pairae F.W.Schultz are: Carex loliacea Schkuhr nom. illeg., Carex bullockiana Nelmes , Carex muricata var. loliacea Schkuhr , Carex muricata var. interrupta Wallr. nom. superfl., Carex muricata var. pairae (FWSchultz) Celak. , Carex muricata subsp. pairae (FW Schulz) Celak. , Carex virens var. Pairae (FWSchultz) Garcke , Carex divulsa var. Pairae (FWSchultz) Nyman , Carex echinata var. Loliacea (Schkuhr) T.Durand , Carex contigua subsp. pairae (FWSchultz) Degen , Carex leersii var. angustifolia Vollm. , Carex pairae var. monostachya Asch. & Graebn. , Carex pairae var. Capitata Christ .

literature

  • 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 .
  • 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 .
  • 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 .
  • Dietmar Aichele, Heinz-Werner Schwegler: Our grasses. 8th edition. Franckh, Stuttgart 1986, ISBN 3-440-05284-2 .

Individual evidence

  1. ^ Carex pairae at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
  2. ↑ a b Rafaël Govaerts (Ed.): Carex pairae. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved October 17, 2016.
  3. ^ Carex pairae at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed October 3, 2016.

further reading

  • A. Molina, C. Acedo, F. Llamas: Taxonomy and new taxa in Eurasian Carex (section Phaestoglochin, Cyperaceae). In: Systematic Botany , Volume 33, 2008, pp. 237-250.
  • J. Koopman: Carex Europaea. The Genus Carex L. (Cyperaceae) in Europe. , 1, Margraf publishers, Weikersheim, Germany, 2011, pp. 1-726.

Web links

Commons : Pairas Sedge ( Carex pairae )  - album with pictures, videos and audio files