Furrowed lamb's lettuce
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Furrowed lamb's lettuce ( Valerianella rimosa ) (fruit cluster with unripe fruits) |
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| Valerianella rimosa | ||||||||||||
| bastard |
The furrowed lamb's lettuce ( Valerianella rimosa ) is a member of the valerian family (Valerianoideae) that is scattered or rarely found in Central Europe .
description
The annual herbaceous plant is very similar in appearance to the common lamb's lettuce ( Valerianella locusta ). It usually reaches heights of between 15 and 35 cm. The plant is usually strong and sparsely branched. The upper stalk leaves are lanceolate to linear-lanceolate in shape and serrated at the base, the lower ones are spatulate-lanceolate in shape.
The inflorescence is forked several times, with single flowers in the armpits. The flowers are pale blue in color and reach lengths of around 1.5 to 2 mm. The fruit is almost spherical in shape, looks puffy and reaches a length of about 2.5 mm. Compared to the large, about 0.4 to 0.5 mm long calyx tooth, it is clearly bulbous and single-furrowed. At the base of the large calyx tooth there are occasionally one or two teeth about 0.1 mm long. On a fruit compartment with seeds there are two empty and larger compartments. Most of the time the fruit is bare, more rarely a little hairy.
The furrowed lamb's lettuce flowers mainly in June and July.
The number of chromosomes is 2n = 14 or 16.
Occurrence and endangerment
The furrowed lamb's lettuce occurs in Central and Southern Europe and in North Africa. Its distribution area includes the countries Morocco, Algeria, Spain, France, Germany, Belgium, Luxembourg, the Netherlands, Great Britain, Ireland, Denmark, Czech Republic, Poland, Slovakia, Switzerland, Italy, Corsica, Sicily, Serbia, Croatia, Slovenia, Bosnia Herzegovina, Montenegro, Albania, Greece, Bulgaria, Romania, Hungary, Ukraine, Moldova, European and Asian Turkey, Russia, the Caucasus region, Georgia, Armenia and Azerbaijan. It is a sub-Mediterranean-Mediterranean floral element. In Germany and Austria it occurs scattered or rarely in the entire area. In places it is missing even over longer stretches. It is rarely found in Switzerland.
Valerianella rimosa grows in grain fields. The species prefers fresh to more or less dry, warm and nutrient-rich soils. It can take root up to 20 cm deep and is a clay pointer. It is a character species of the Secalietea class and occurs mainly in societies of the associations Caucalidion lappulae or Aperion.
In Germany, the species is classified as endangered on the Red List . In Austria it is particularly endangered in the western Alps.
swell
literature
- Henning Haeupler, Thomas Muer: picture atlas of the fern and flowering plants of Germany . Ed .: Federal Agency for Nature Conservation (= The fern and flowering plants of Germany . Volume 2 ). Eugen Ulmer, Stuttgart (Hohenheim) 2000, ISBN 3-8001-3364-4 .
- Konrad von Weihe (ed.): Illustrated flora. Germany and neighboring areas. Vascular cryptogams and flowering plants . Founded by August Garcke. 23rd edition. Paul Parey, Berlin / Hamburg 1972, ISBN 3-489-68034-0 .
- Wolfgang Adler, Karl Oswald, Raimund Fischer: Excursion flora of Austria . Ed .: Manfred A. Fischer. Eugen Ulmer, Stuttgart / Vienna 1994, ISBN 3-8001-3461-6 .
- Christian Heitz: School and excursion flora for Switzerland. Taking into account the border areas. Identification book for wild growing vascular plants . Founded by August Binz. 18th completely revised and expanded edition. Schwabe & Co., Basel 1986, ISBN 3-7965-0832-4 .
- Erich Oberdorfer : Plant-sociological excursion flora . With the collaboration of Theo Müller. 6th, revised and expanded edition. Eugen Ulmer, Stuttgart (Hohenheim) 1990, ISBN 3-8001-3454-3 .
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. 880-881 .
- ^ E. von Raab-Straube & T. Henning (2017+): Valerianaceae. - In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity. Data sheet Valerianaceae
- ↑ Furrowed lamb's lettuce. In: FloraWeb.de.
Web links
- Valerianella rimosa Bastard, Furchtes Rapünzchen. In: FloraWeb.de.
- Furrowed lamb's lettuce . 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 .
- Valerianella rimosa Bastard In: Info Flora , the national data and information center for Swiss flora .
- Thomas Meyer: Lamb's lettuce data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )