Alsatian summer arum
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Alsatian summer arum ( Orobanche alsatica ) |
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The Alsatian summer root ( Orobanche alsatica ) is a plant species from the genus of summer root ( Orobanche ) in the family of summer root plants (Orobanchaceae).
description
The Alsatian summer arum is a parasitic plant that is 20 to 40 cm high . It parasitizes on plants of the genera Haarstrang ( Peucedanum ) and laser herbs ( Laserpitium ).
Crown and stem are colored the same. The upper part of the ovary and the stylus are scattered glandular, below the scar , the glands are more dense. The stamens set 4 to 5 mm above the crown base. The flowering period is between June and July.
Occurrence
The Alsatian summer root occurs in southern, central and eastern Europe, in Morocco, in Central Asia, in Siberia, in the Caucasus and in China.
Systematics
Three subspecies are distinguished within the species, the subspecies libanotidis is occasionally also known as Orobanche bartlingii Griseb. guided.
- Alsatian summer arum ( Orobanche alsatica Kirschl. Subsp. Alsatica ): It has the chromosome number 2n = 38.
- Bartling's summer root ( Orobanche alsatica subsp. Libanotidis (Rupr.) Tzvelev , Syn .: Orobanche bartlingii Griseb. ): It has the chromosome number 2n = 38. It occurs in southern, central and eastern Europe.
- Mayer's Sommerwurz ( Orobanche alsatica subsp. Mayeri (Suess. & Ronniger) Kreutz ): It is endemic to the Swabian Alb. It was discovered in July 1940 by the Tübingen pharmacist Adolf Theodor Mayer on the Zeller Horn and on the Hangenden Stein am Raichberg near Onstmettingen. He considered the plant to be Orobanche elatior , but the clan was recognized as new by Karl Suessenguth and Ronniger in 1942 and described in honor of the discoverer as the new variety Orobanche alsatica var. Mayeri .
Locations
The species grows in heat-privileged fringing communities and semi-arid grasslands. It prefers moderately dry, base-rich, lime-rich, nutrient-poor soils. In Central Europe it is a species of the Geranion sanguinei association.
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 Orobanche in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved January 27, 2018.
- ↑ a b Orobanche alsatica at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
- ^ Siegfried Demuth: Orobanchaceae . In: O. Sebald u. a .: The fern and flowering plants of Baden-Württemberg . Volume 5, pages 361-398. Verlag Eugen Ulmer, Stuttgart 1996. ISBN 3-8001-3342-3 .
- ^ 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 .
Web links
- Alsatian summer arum. In: FloraWeb.de.
- Alsatian summer arum . 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 alsatica cherry. s. l. In: Info Flora , the national data and information center for Swiss flora .
- Thomas Meyer: Sommerwurz data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )