Scaly yellow sedge

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Scaly yellow sedge
Flaky yellow sedge (Carex lepidocarpa)

Flaky yellow sedge ( Carex lepidocarpa )

Systematics
Monocots
Commelinids
Order : Sweet grass (Poales)
Family : Sourgrass family (Cyperaceae)
Genre : Sedges ( Carex )
Type : Scaly yellow sedge
Scientific name
Carex lepidocarpa
exchange

The scaly sedge ( Carex lepidocarpa ), also called scaly sedge , is a species of the genus Seggen ( Carex ) within the sour grass family ( Cyperaceae ). It spreads in the northern hemisphere from Europe to northwest Africa and in eastern Canada .

description

Inflorescence with male spikelets above and female spikelets below

Vegetative characteristics

Carex lepidocarpa is a deciduous, perennial herbaceous plant and reaches heights of 20 to 50 centimeters. It forms small, loose or firm clumps . Like the rest of the plant, the above-ground parts of the plant are colored light green to yellow-green. The leaves are 2 to 3 millimeters wide.

Generative characteristics

The flowering time is in May and June. The bracts of the 5 to 10 cm long inflorescence are leaf-like and are mostly oblique. At the tip there is a terminal, stalked male spikelet , below it there are 1 to 2 lateral female spikelets. The female spikelets are 7 to 15 mm long and 7 to 10 mm wide. The male spikelets are much slimmer and are 10 to 25 mm long and 2 to 3 mm wide. The 4.5 mm large tubes are initially green when immature, later they change color to a characteristic yellow-green; they quickly narrow into a 2 mm long, two-toothed, clearly downwardly curved beak.

The number of chromosomes is 2n = 68.

Occurrence

The distribution area of Carex lepidocarpa includes Europe to North Africa and eastern Canada. Carex lepidocarpa is widespread in large parts of Europe. In Germany it occurs only sparsely or rarely.

It prefers to colonize low -nutrient , lime-rich low and spring moors as well as bog forests. It also occurs secondarily on wet meadows, by streams and in ditches. It is a weak character species of Juncetum alpini from the association Caricion bicolori-atrofuscae, but it also occurs in societies of the association Caricion davallianae.

This article or paragraph presents the situation in Germany . Help us to describe the situation in other countries.

Their populations in Germany are declining due to the destruction of their habitats such as the mining and excavation of moors. Nationwide it was classified as endangered in 1996 on the Red List of Vascular Plants.

Systematics

The species Carex lepidocarpa belongs to the species complex Carex flava agg.

The first description of Carex lepidocarpa was made in 1834 by Ignaz Friedrich Tausch in Flora , 17, 179. synonyms for Carex lepidocarpa exchange are: Carex flava var. Lepidocarpa (exchange) Godr. , Carex flava subsp. lepidocarpa (exchange) Nyman , Carex viridula var. lepidocarpa (exchange) B.Schmid .

Of Carex lepidocarpa exchange , there are about four subspecies:

  • Carex lepidocarpa subsp. Jemtlandica Palmgr. (Syn .: Carex Jemtlandica (Palmgr.) Palmgr. , Carex flava subsp. Jemtlandica (Palmgr.) PDSell , Carex viridula var. Jemtlandica (Palmgr.) Blackst. & PAAshton ): It occurs in Northern Europe and Northeastern Europe.
  • Carex lepidocarpa exchange subsp. lepidocarpa (Syn .: Carex lipsiensis Peterm. , Carex pyriformis Tausch ex FWSchultz , Carex oederi var. elatior Gaudin , Carex oederi var. major Boeckeler , Carex flava var. minor Peterm. nom. illeg., Carex flava var. elatior Schltdl. , Carex flava var. laevigata Peterm. , Carex flava var. polystachya Gaudin , Carex flava var. nelmesiana (Raymond) B.Boivin , Carex flava subsp. brachyrhyncha Celak. , Carex lepidocarpa var. pseudolepidocarpa Kneuck. , Carex lepidocarpa var. cylindrostachys Neuman , Carex lepidocarpa var. sphaerostachys Neuman , Carex lepidocarpa var. nelmesiana Raymond , Carex lepidocarpa var. turgida Palmgr. & Florstr. , Carex jemtlandica var. gotlandiae Palmgr. , Carex jemtlandica var. kainuensis Palmgr. , Carex viridula subsp. brachyrhyncha (Celak.) B. Schmid , Carex viridula var. Elatior (Schltdl.) Crins ): It occurs from Europe to northwest Africa and in eastern Canada.
  • Carex lepidocarpa subsp. nevadensis (Boiss. & Reut.) Luceño (Syn .: Carex nevadensis Boiss. & Reut. , Carex oederi Willk. sensu auct., Carex oederi subsp. nevadensis (Boiss. & Reut.) Nyman , Carex oederi var. nevadensis (Boiss . & Reut.) K.Richt. , Carex lepidocarpa var. Nevadensis (Boiss. & Reut.) Kük. , Carex flava var. Nevadensis (Boiss. & Reut.) Briq. , Carex mairei subsp. Nevadensis (Boiss. & Reut .) .) Malag. , Carex viridula subsp. Nevadensis (Boiss. & Reut.) B. Schmid , Carex viridula var. Nevadensis (Boiss. & Reut.) Crins ): It occurs in southeastern Spain and in the Atlas Mountains of Morocco.
  • Carex lepidocarpa subsp. scotica E.W.Davies (Syn .: Carex viridula var. scotica (EWDavies) B.Schmid , Carex flava subsp. scotica (EWDavies) PDSell ): This endemic occurs only in Scotland .

literature

  • E. Foerster: Sedges, rushes, ledges and other mock grasses of grassland - a key to determining in the flowerless state. Manuscript, Kleve-Kellen March 1982.
  • Eckehart J. Jäger, Klaus Werner (Ed.): Excursion flora from Germany . Founded by Werner Rothmaler. 10th edited edition. tape 4 : Vascular Plants: Critical Volume . Elsevier, Spektrum Akademischer Verlag, Munich / Heidelberg 2005, ISBN 3-8274-1496-2 .
  • 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 .

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. 191 .
  2. ↑ a b c d e f g Rafaël Govaerts (Ed.): Carex lepidocarpa. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved October 22, 2016.

Web links

Commons : Flaky yellow sedge ( Carex lepidocarpa )  - album with pictures, videos and audio files