Persistent sand bell

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Persistent sand bell
Persistent sand bell (Jasione laevis), habitus

Persistent sand bell ( Jasione laevis ), habitus

Systematics
Euasterids II
Order : Astern-like (Asterales)
Family : Bellflower family (Campanulaceae)
Subfamily : Campanuloideae
Genre : Sandrapunzeln ( Jasione )
Type : Persistent sand bell
Scientific name
Jasione laevis
Lam.

The Perennial sand bell ( Jasione laevis ), also known as Perennial sand Tangled referred to is a species of the genus of jasione ( Jasione ) within the family of bell flower plants (Campanulaceae).

description

Inflorescence from the side and indument

Vegetative characteristics

The perennial sandbell is a perennial herbaceous plant and reaches heights of 25 to 60 centimeters. It forms runners ( stolons ) and numerous sterile leaf rosettes . Its stems are not very branched. The leaves are flat and have entire or weakly serrated.

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Generative characteristics

The spherical inflorescence is 25 to 30 millimeters in diameter. The hermaphrodite flowers are five-fold with a double flower envelope . The calyx teeth are bare. The petals are blue-purple.

The basic chromosome number is x = 6; were chromosome numbers 2n = 12, 24, 48 or 60 determined.

ecology

The perennial sandbell is a hemicryptophyte .

Occurrence

The perennial sand bell is widespread from the Atlantic to the sub-Mediterranean. In Europe it grows in the continental gradient, preferably near the coast. Its distribution area includes south-western and central Europe (Portugal, Spain, France, Belgium and Germany).

It mainly settles in dwarf shrub heaths and grass lawns (Violion caninae Schwick. 1944). As a pioneer plant , it colonizes particularly gaps on embankments or roadsides. It thrives best on low-nitrogen, low-base, moderately acidic to acidic, low-calcium soils .

Systematics

The first publication of Jasione laevis was in 1779 by Jean Baptiste de Monnet de Lamarck . Synonyms for Jasione laevis Lam. are: Jasione montana var. perennis L. f. , Jasione perennis (L. f.) Lam. , Jasione pygmaea (Gren. & Godr.) Timb.-Lagr. , Ovilla perennis (L. f.) Bubani , Jasione pyrenaica Sennen , Jasione bialis Sennen , Jasione tajae Sennen , Jasione laevis var. Pygmaea (Gren. & Godr.) O.Bolòs & Vigo , Jasione laevis subsp. gredensis Rivas Mart. & Sancho .

From Jasione laevis There are two subspecies:

  • Jasione laevis subsp. carpetana (Boiss. & Reut.) Rivas Mart. : It occurs in Spain.
  • Jasione laevis Lam. subsp. laevis

use

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In the German trade the variety Jasione laevis ('blue light') is mostly offered for use in rock gardens under the name "blue-headed" .

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 .
  • Erich Oberdorfer : Plant-sociological excursion flora . With the collaboration of Theo Müller. 7th, revised and expanded edition. Eugen Ulmer, Stuttgart (Hohenheim) 1994, ISBN 3-8252-1828-7 .
  • Heinz Ellenberg , HE Weber, R. Düll, V. Wirth, W. Werner & D. Paulißen: Pointer values ​​of plants in Central Europe. Scripta Geobotanica 18, Verlag Erich Goltze, 1992. ISBN 3-88452-518-2

Individual evidence

  1. ↑ a b c d Persistent sand bell . In: BiolFlor, the database of biological-ecological characteristics of the flora of Germany.
  2. ^ 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.  898 .
  3. ↑ a b c Rafaël Govaerts (Ed.): Jasione - data sheet at World Checklist of Selected Plant Families of the Board of Trustees of the Royal Botanic Gardens, Kew. Last accessed on April 8, 2016.

Web links

Commons : Persistent Sandbell ( Jasione laevis )  - album with pictures, videos and audio files