Thyme summer root
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Thyme summer root ( Orobanche alba ) |
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| Willd. |
The thyme summer root ( Orobanche alba ), also called Quendel summer root or white summer root, is a plant species from the genus of summer root ( Orobanche ) in the family of summer root plants (Orobanchaceae).
description
The thyme arum is a parasitic plant 6 to 25 cm high . The host plants are mint plants (Labiatae), mostly thyme ( thymus ).
The flowers are odorless, they have a calyx , the halves of which are usually provided with several distinct nerves. The calyx tips are brown in color and can hardly be distinguished from the color of the crown when fresh . This is 18 to 22 mm long, mostly whitish-light yellow, veined violet and often tinged with red-violet at the tip. The upper lip is covered with dark glandular hair. The scar is brownish-purple.
The flowering period is between April and August.
The number of chromosomes is 2n = 38 or 16.
Occurrence
The thyme summer root is found in Europe, North Africa, West Asia , Central Asia, the Caucasus, Pakistan, India, Nepal and China. It grows on dry and semi-arid grassland and in light and warm forests. It prefers moderately dry, calcareous soils and altitudes up to 1900 m. In the Allgäu Alps, it rises to an altitude of 1850 meters. In Central Europe it is a species of the societies of the classes Sedo-Scleranthetea, Festuco-Brometea or the order Seslerietalia albicantis.
Taxonomy
A synonym of Orobanche alba Stephan ex Willd. is Orobanche epithymum DC.
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. 866-867 .
- ↑ Erhard Dörr, Wolfgang Lippert : Flora of the Allgäu and its surroundings. Volume 2, IHW, Eching 2004, ISBN 3-930167-61-1 , p. 482.
Web links
- Thyme summer root. In: FloraWeb.de.
- Thyme summer root . 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 .
- Orobanche alba Willd. 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.)
- Thomas Meyer: Sommerwurz data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )
