Westphalian sedge
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Westphalian sedge ( Carex divulsa ) |
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| ( Boenn. Ex Rchb. ) Boenn. ex O. Lang |
The Westphalian sedge ( Carex divulsa Stokes , syn .: Carex guestphalica (Rchb.) Boenn. Ex O. Lang , Carex leersiana ), also known as empty sedge or many-leaved sedge , is a species of plant within the sour grass family (Cyperaceae).
description
“The Westphalian sedge differs from the very similar interrupted-eared sedge ( Carex divulsa ) by the longer or longer beaked fruit sacs and the broader leaves. The inflorescence is not so elongated either. "
Vegetative characteristics
The Westphalian sedge grows as a perennial herbaceous plant and reaches heights of between 40 and 100 centimeters. It has no runners and grows in medium-sized to fairly large, dense clumps . The usually rigid upright stem is firm, plants growing in the shade can also develop limp, strongly overhanging stems. The leaf blades are usually 3 to 4 mm wide. The arch of the ligule is about as high as it is wide.
Generative characteristics
The flowering time is mainly in the months of May and June. The Westphalian sedge is monoecious ( monoecious ). It belongs to the group of sedges of the same age, in which the spikelets are shaped identically. These almost always contain both male and female flowers . The total of 4 to 10 centimeters long inflorescence is strongly interrupted in the lower part. The shadier the location, the longer the distances between the ears.
The cover husks are light brown in color; whitish husks only appear with shadow modifications . The beaked fruit sacs are about 4 to 5.5 mm long and have two scars .
Westphalian sedge
Westphalian sedge (ligule)
Occurrence and systematics
The overall distribution of Carex divulsa is not precisely known as its taxonomic rank has long been controversial. In the past it was classified as a subspecies of Carex pairae or Carex divulsa . It turns out that Carex divulsa is the right name.
The Westphalian sedge is thought to be scattered in Germany, Austria and Switzerland.
Carex guestphalica grows on fields and forest edges. It prefers moderately fresh, nutrient and base-rich, moderately acidic loamy soils.
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 .
Web links
- Carex divulsa. In: FloraWeb.de.
- Carex divulsa aggr. 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.)
- Data sheet with photos.
