Filzkraut
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![]() Feltwort ( Filago arvensis ) |
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L. |
The Field Cudweed ( Filago arvensis ) is a plant of the genus Filzkräuter ( Filago ) in the subfamily Asteroideae within the family of Compositae (Asteraceae). It is widespread in Eurasia and North Africa.
description
Filzkraut grows as an annual herbaceous plant that reaches heights of 10 to 35 centimeters. The upright stem is branched from the middle to panicles and hairy white and tomentose. The leaves are oblong-lanceolate with a length of 10 to 20 millimeters and a width of 1 to 4 millimeters.
The three to twelve 4 to 5 millimeters long flower heads are not of bracts surmounted. All bracts are blunt, not keeled, covered with wooly tomentose hair up to the tip and spread out in a star shape at the time of fruiting.
The number of chromosomes is 2n = 28.
Occurrence
The distribution area of the felt herb extends northward in Europe to Sweden and Finland ; further over North Africa , Western Asia to Central Asia and to the Altai Mountains .
In Central Europe it occurs rarely in the sandy areas east of the Elbe and in those in the low mountain ranges, also at the foot of the Alps and in the lower elevations of the central and southern Alpine valleys. It rises to an altitude of 1000 meters.
Filzkraut thrives best on lime-poor, nutritious , stony, gritty or sandy soils . It colonizes paths, fallow land and fields. Filago arvensis is a character species of the Filagini-Vulpietum from the Thero-Airion association, but also occurs in warmth-loving societies of the Aperion spicae-venti association.
Systematics
The first publication of Filago arvensis was in 1753 by Carl von Linné in Species Plantarum . Synonyms for Filago arvensis are: Filago lagopus (Stephan ex Willd.) Parl. , Gnaphalium arvense (L.) Willd. , Gnaphalium lagopus Stephan ex Willd. , Logfia arvensis (L.) Holub , Oglifa arvensis (L.) Cass. , Oglifa lagopus (Stephan ex Willd.) Chrtek & Holub . The specific epithet arvensis means "growing in fields".
The feltwort is a type of the subgenus Filago subgen. Oglifa .
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literature
- Siegmund Seybold : The flora of Germany and the neighboring countries. A book for identifying all wild and frequently cultivated vascular plants . Founded by Otto Schmeil , Jost Fitschen . 95th completely revised and expanded edition. Quelle & Meyer, Wiebelsheim 2011, ISBN 978-3-494-01498-2 .
- Henning Haeupler, Thomas Muer: picture atlas of the fern and flowering plants of Germany . Published by the Federal Agency for Nature Conservation (= The fern and flowering plants of Germany . Volume 2 ). 2nd corrected and enlarged edition. Eugen Ulmer, Stuttgart (Hohenheim) 2007, ISBN 978-3-8001-4990-2 .
- Oskar Sebald, Siegmund Seybold, Georg Philippi, Arno Wörz (eds.): The fern and flowering plants of Baden-Württemberg . tape 6 : Special part (Spermatophyta, subclass Asteridae): Valerianaceae to Asteraceae . Eugen Ulmer, Stuttgart (Hohenheim) 1996, ISBN 3-8001-3343-1 .
- Dietmar Aichele, Heinz-Werner Schwegler: The flowering plants of Central Europe . 2nd Edition. tape 4 : Nightshade plants to daisy plants . Franckh-Kosmos, Stuttgart 2000, ISBN 3-440-08048-X .
Individual evidence
- ↑ a b c d Filago arvensis L., Filzkraut. In: FloraWeb.de.
- ↑ 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. 917 .
- ↑ Carl von Linné: Species Plantarum. Volume 2, Lars Salvius, Stockholm 1753, p. 856 online .
- ↑ a b Filago arvensis at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed May 19, 2015.
- ↑ Filago arvensis in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved May 19, 2015.
Web links
- Filago arvensis L., feltwort. In: FloraWeb.de.
- Filzkraut . 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 .
- Filago arvensis L. 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: Filzkraut data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia ).
- Gerhard Nitter: Profile with photos.
- Günther Blaich: data sheet with photos.
- Description from Garcke 1898 and photo.