Mane barley
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Maned barley ( Hordeum jubatum ) |
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The mane barley ( Hordeum jubatum ) is a species of the genus barley ( Hordeum ) within the sweet grass family (Poaceae).
description
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Appearance and leaf
The mane barley grows as a perennial herbaceous plant and reaches heights of 20 to 50, rarely up to 60 centimeters. The stalk has three to five nodes (nodes). The leaves are green and softly overhanging in summer. The stem leaves are densely hairy on both sides. The leaf blade is flat.
inflorescence
The flowering time is in the middle of summer . The terminal, overhanging, spiky inflorescences are silky silver-white, turn beige towards the end of summer and often have a slight reddish tinge. In an annual inflorescence three to six spikelets are close together. The spikelets are single-flowered and without basal bristles. Only the middle spikelets are petiolate. The lemmas have long 5 to 8 centimeters awns .
Chromosome set
The maned barley is tetraploid with a chromosome number of 2n = 28 . It was created by crossing ( hybridizing ) a Central Asian species of barley with the North American species Hordeum brachyantherum (or a closely related species that is now extinct).
Occurrence
Mane barley is native to northern North America ( Alaska , Canada ), and Asia from northeastern Siberia to the Caucasus. It is cultivated in gardens and is often released into the wild as "garden refugees", so that this species occurs today as " weeds " in many regions of the world . It thrives on fresh, nutrient-rich, sometimes salty soils in humid climates. It grows in societies of the Sisymbrion or Agropyro-Rumicion associations on the edge of salt-strewn roads.
The mane barley prefers sunny locations and is salt-tolerant.
swell
Individual evidence
- ↑ a b c d e f Hordeum jubatum L., mane barley. In: FloraWeb.de.
- ↑ Rafaël Govaerts (Ed.): Hordeum jubatum. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved November 15, 2016.
- ^ 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. 236 .
literature
- Roland von Bothmer, Niols Jacobsen, Claus Baden, Rikke B. Jørgensen & Ib Linde-Laursen: At ecogeographical study of the genus Hordeum , 2nd ed. . International Plant Genetic Resources Institute, Rome, 1995, ISBN 92-9043-229-2 .
- Frank R. Blattner: Phylogenetic analysis of Hordeum (Poaceae) as inferred by nuclear rDNA ITS sequences . In: Molecular Phylogenetics and Evolution . 33, No. 2, 2004, pp. 289-299. "No"
- Frank R. Blattner: Multiple intercontinental dispersals shaped the distribution area of Hordeum (Poaceae) . In: New Phytologist . 169, No. 3, 2006, pp. 603-614. doi : 10.1111 / j.1469-8137.2005.01610.x . "No"
Web links
- Mane barley . 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 .
- Hordeum jubatum L. In: Info Flora , the national data and information center for Swiss flora . Retrieved September 25, 2015.
- Distribution in the northern hemisphere according to: Eric Hultén , Magnus Fries: Atlas of North European vascular plants 1986, ISBN 3-87429-263-0 .
- Thomas Meyer: Data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )
