Spring tooth rust
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Spring tooth rust ( Odontites vernus ) |
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| Dumort. |
The spring tooth grid ( Odontites vernus ) is a plant species from the genus of tooth grid and is also widespread in Central Europe.
features
The species only blooms in May and June and differs from Odontites vulgaris by its acute-angled branches. The 1 to 4 pairs of branches take an angle of 20 ° to 40 °. The leaves of the spring tooth rust are pointed, not fleshy and longer than the flowers. At the end of the flowering period, the stylus protrudes from the crown.
The number of chromosomes is 2n = 40.
distribution
The plant is mostly found in fields and in short-lived weed meadows. In terms of plant sociology, it can be seen as a characteristic of the Aperion spica-venti association. But it also occurs in societies of the Caucalidion lappulae association. The species, which is widespread across Europe, is rare in Germany. In some federal states it is on the red list. Their distribution area includes Southern Europe, Central Europe, Eastern Europe, Turkey, Armenia and Iran.
literature
- 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 .
- Franz Fukarek , Heinz executioner : Flora of Mecklenburg-Western Pomerania. Fern and flowering plants . Weissdorn, Jena 2006, ISBN 3-936055-07-6 .
Individual evidence
- ^ 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. 851 .
- ↑ Odontites vernus subsp. vernus in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland.
Web links
- Odontites vernus (Bellardi) Dumort., Acker-Zahntrost. In: FloraWeb.de.
- Spring tooth rust . 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 .
- Odontites vernus (Bellardi) Dumort. In: Info Flora , the national data and information center for Swiss flora . Retrieved March 14, 2016.
- Thomas Meyer: Zahntrost data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )