Humpback sedum plant

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Humpback sedum plant
Sedum dasyphyllum (1) 6.jpg

Humpback sedum ( Sedum dasyphyllum )

Systematics
Order : Saxifragales (Saxifragales)
Family : Thick-leaf family (Crassulaceae)
Subfamily : Sempervivoideae
Tribe : Sedeae
Genre : Sedum ( Sedum )
Type : Humpback sedum plant
Scientific name
Sedum dasyphyllum
L.

The hump-fat hen ( Sedum dasyphyllum ), also Dick leaf fat hen , Dickblättrige Fetthenne or hump-Mauerpfeffer called, is a plant belonging to the genus sedum ( Sedum ) within the family of Crassulaceae part (Crassulaceae).

description

The humpback sedum plant is an evergreen, perennial succulent plant that reaches heights of 5 to 15 centimeters. It forms prostrate to ascending, densely leafed, non-flowering shoots and in the upper part loosely leafed, glandular-haired flower shoots. The predominantly opposite, succulent, blue-green leaves are egg-shaped with a length of 3 to 7 mm, flat above and strongly curved below.

The hermaphrodite flowers are radially symmetrical with a double flower envelope . The five to six petals are white or pink, with a dark central nerve, pointed and two to three times as long as the sepals. The ovary is on top.

Humpback sedum plant

The flowering period extends from May to August.

The number of chromosomes is 2n = 28, 42 or 56.

ecology

The humpback sedum plant is pollinated by insects . The main pollinators are cutaneous and double-winged birds. Cross-pollination is supported by pre-femininity in that the stigmas ripen in front of the anthers. The spread of the diaspores and broken branches is bound to water . The seeds need light to germinate successfully.

Humpback sedum ( Sedum dasyphyllum )

Occurrence

The humpback sedum plant is essentially a sub-Mediterranean-pre-alpine flora element . The distribution area of ​​the humpback sedum plant extends in southern Europe from Spain to Greece and forms a distribution center in the montane and subalpine altitude. To the north, the distribution area extends to central France and southern Germany, with a few naturalizations also further north. There are also occurrences in southwest Anatolia and in northwest Africa.

In Germany it occurs sporadically in the Palatinate, in the Swabian Jura, in the southern Black Forest and in the Allgäu. It is rare in the Swiss Jura and the Swiss Mittelland, in Vorarlberg and in Upper and Lower Austria; in the Alps it is scattered and there rises to altitudes of 2000 meters. In the Allgäu Alps it occurs in the Tyrolean part near Reutte between Dürnau and Vorderer Mutte up to 1850 meters above sea level.

The humpback sedum plant needs dry, stony subsoil that is poor in fine soil and humus in a sunny location. She likes to colonize ruins and old walls. It is a species of the class Asplenietea trichomanis, but also occurs in societies of the order Sedo-Scleranthetalia.

Danger

In Germany, the humpback sedum is considered endangered according to the Red List . Their populations are in decline in the area and in Central Europe. It is considered safe throughout Central Europe. The main reasons for the decline are measures for village renovation and castle restoration.

use

The humpback sedum plant has been cultivated since around 1697 and is planted as an ornamental plant in rock gardens, from which it grows wild here and there. It needs a sunny and dry location on calcareous soils.

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 , p. 398 .
  • 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 , pp. 203 .
  • Oskar Sebald, Siegmund Seybold, Georg Philippi (Hrsg.): The fern and flowering plants of Baden-Württemberg . tape 3 : Special part (Spermatophyta, subclass Rosidae): Droseraceae to Fabaceae . Eugen Ulmer, Stuttgart (Hohenheim) 1992, ISBN 3-8001-3314-8 , pp. 243-245 .
  • Dietmar Aichele, Heinz-Werner Schwegler: The flowering plants of Central Europe . 2nd Edition. tape 2 : Yew family to butterfly family . Franckh-Kosmos, Stuttgart 2000, ISBN 3-440-08048-X , p. 324 .

Individual evidence

  1. ↑ Rolf Wisskirchen, Henning Haeupler: Standard list of fern and flowering plants in Germany. With chromosome atlas . Ed .: Federal Agency for Nature Conservation (=  The fern and flowering plants of Germany . Volume 1 ). Eugen Ulmer, Stuttgart (Hohenheim) 1998, ISBN 3-8001-3360-1 , p. 467 .
  2. ↑ a b Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . 8th edition. Verlag Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3131-5 . Page 483.
  3. ↑ Erhard Dörr, Wolfgang Lippert : Flora of the Allgäu and its surroundings. Volume 1, IHW, Eching 2001, ISBN 3-930167-50-6 , p. 648.
  4. ↑ Eckehart J. Jäger, Friedrich Ebel, Peter Hanelt, Gerd K. Müller (eds.): Exkursionsflora von Deutschland . Founded by Werner Rothmaler. tape 5 : Herbaceous ornamental and useful plants . Springer, Spektrum Akademischer Verlag, Berlin / Heidelberg 2008, ISBN 978-3-8274-0918-8 , pp. 329 .

Web links

Commons : Humpback stonecrop ( Sedum dasyphyllum )  - Collection of images, videos and audio files