Reddish sedum plant
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Reddish sedum ( Sedum rubens ) |
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The reddish sedum ( Sedum rubens ) is a plant from the genus of sedum ( Sedum ) in the family of Crassulaceae (Crassulaceae).
description
Vegetative characteristics
The reddish sedum plant is a rosette-free, unbranched or branched, annual-overwintering succulent plant that reaches heights of 5 to 15 centimeters. The alternate leaves are 10 to 20 millimeters long, blue-green, usually half-stemmed, and flat or gullied on top.
Generative characteristics
The flowering period in Central Europe extends from June to July. The one-sided inflorescences contain many almost sessile flowers. The hermaphroditic flowers are radial symmetry and five-fold with a double flower envelope . The five sepals are green. The five white to pink petals have a red keel and are pointed. As an exception among the Sedum species, there is only one circle with five stamens ; they are red.
The number of chromosomes is 2n = 20, 40 to 42, 60, 80, 94, 100.
ecology
The reddish sedum plant is a therophyte .
The pollination is done by insects .
Occurrence and endangerment
The distribution area of the red stonecrop extends from southern and central Europe to the Middle East and Central Asia and to North Africa with the Canary Islands.
In Germany it occurs only rarely in western Rhineland-Palatinate near Trier . According to the Red List of Ferns and Flowering Plants in Germany from 1996, the red sedum is considered to be threatened with extinction; but is not specially protected according to BArtSchV .
The reddish sedum plant colonizes dry sand , ruderal areas such as fallow land , roadsides and walls as well as vineyards. It is a species of character belonging to the Sedo-Scleranthetea class.
supporting documents
literature
- Eckehart J. Jäger, Klaus Werner (Ed.): Excursion flora from Germany . Founded by Werner Rothmaler. 10th edited edition. tape 4 : Vascular Plants: Critical Volume . Elsevier, Spektrum Akademischer Verlag, Munich / Heidelberg 2005, ISBN 3-8274-1496-2 .
Individual evidence
- ↑ a b Data sheet distributed in Spain by Flora Vascular .
- ↑ a b c Sedum rubens L. In: Info Flora , the national data and information center for Swiss flora . Retrieved October 30, 2015.
- ↑ a b Sedum rubens L., Reddish sedum plant. In: FloraWeb.de.
- ↑ Jaakko Jalas, Juha Suominen, Raino Lampinen, Arto Kurtto (eds.): Atlas Florae Europaeae. Distribution of Vascular Plants in Europe. 12. Resedaceae to Platanaceae. Akateeminen Kirjakauppa & Tiedekirja, The Committee for Mapping the Flora of Europe & Societas Biologica Fennica Vanamo, Helsinki 1999, ISBN 951-9108-12-2 , p. 94.
- ↑ Wolfgang Lippert : Crassulaceae . In: Heinrich Egon Weber (ed.): Illustrated flora of Central Europe . Founded by Gustav Hegi. 3rd, completely revised and enlarged edition. Volume IV. Part 2A: Spermatophyta: Angiospermae: Dicotyledones 2 (2) (Hamamelidaceae - Rosaceae 1st part) . Blackwell, Berlin a. a. 1995, ISBN 3-8263-3016-1 , pp. 129 .
- ^ Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas. 8th edition. Verlag Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3131-5 . Page 481.
Web links
- Sedum rubens L., reddish sedum plant. In: FloraWeb.de.
- Distribution map for Germany. In: Floraweb .
- Reddish sedum plant . In: BiolFlor, the database of biological-ecological characteristics of the flora of Germany.
- Thomas Meyer: Data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )
- Data sheet with photo.
- Data sheet with photos and distribution in Portugal at flora-on .