Nordic eyebright
| Nordic eyebright | ||||||||||||
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Northern eyebright ( Euphrasia frigida ) |
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| Euphrasia frigida | ||||||||||||
| Pugsley |
The Nordic Augentrost ( Euphrasia frigida ), also Scandinavian Augentrost called, a plant is art from the genus Augentrost ( Euphrasia ) in the family of broomrape plants (Orobanchaceae).
description
The Nordic eyebright is a 3 to 15 cm large, semi - parasitic annual plant . The stem is often bent at the base. The leaves are covered on both sides with four to seven blunt to pointed teeth, they are about as wide as they are long. They are relatively large in relation to the entire plant.
The inflorescences are terminal and appear after usually two to four, rarely five internodes . The flowers are 5 to 7 mm long, the crowns are veined white and purple.
The fruits are capsule fruits that are as long or longer as the perennial calyx.
The number of chromosomes is 2n = 44.
Occurrence
The species occurs in northern and central Europe, in northwest Asia and in eastern North America. It grows on mountain meadows and grasslands on acidic, nutrient-poor soils. It occurs in societies of the order Nardetalia and the associations of the Montanen Goldhaferwiesen (Polygono-Trisetion) and the semi-arid grasslands (Mesobromion).
literature
- Siegmund Seybold : Flora of Germany and neighboring countries. A book for identifying vascular plants that grow wild and often cultivated . Founded by Otto Schmeil , Jost Fitschen . 93rd completely revised and expanded edition. Quelle & Meyer, Wiebelsheim 2006, ISBN 3-494-01413-2 .
- Hans-Joachim Zündorf, Karl-Friedrich Günther, Heiko Korsch, Werner Westhus (eds.): Flora of Thuringia. The wild fern and flowering plants of Thuringia . Weissdorn, Jena 2006, ISBN 3-936055-09-2 .
Individual evidence
- ↑ 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. 853 .
Web links
- Nordic eyebright. In: FloraWeb.de.
- Nordic eyebright . 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 .
- 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.)
- Thomas Meyer: Eyebright data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )
