Sand-silver notch

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Sand-silver notch
Sand-Silberscharte (Jurinea cyanoides), illustration

Sand-Silberscharte ( Jurinea cyanoides ), illustration

Systematics
Order : Astern-like (Asterales)
Family : Daisy family (Asteraceae)
Subfamily : Carduoideae
Tribe : Cynareae
Genre : Silberscharten ( Jurinea )
Type : Sand-silver notch
Scientific name
Jurinea cyanoides
( L. ) Rchb.

The sand silver wedge ( Jurinea cyanoides ), also called cornflower-like Jurinee or sand musk thistle , is a species of the daisy family (Asteraceae). The sand-silver notch is rare and is now protected across Europe by the Habitats Directive . The generic name honors the Swiss doctor and naturalist Louis Jurine (1751–1819).

description

The Sand-Silberscharte is an upright, deciduous, perennial herbaceous plant and reaches heights of 20 to 70 cm. This species forms ground roots up to 2.50 m deep. In the course of vegetative reproduction , underground shoots can grow into new sub-plants of an individual. The foliage leaves , arranged in a basal rosette, are pinnately fissured, with linear tips with entire margins. The upper side of the leaf is first woolly cobweb and later balding and then dark green; the underside of the leaf remains hairy white tomentose.

The long-stemmed cups are usually individually on the stems. They have a diameter of 3 to 5 cm. The bracts are tomentose-gray. Usually the corolla is purple. The flowering period extends from July to September.

The achenes are smooth and weakly pitted.

The number of chromosomes is 2n = 30.

Occurrence

The sand-silver wedge is a continental floral element that is widespread from southern and central Russia to western Siberia and further to the Altai and from the Caucasus countries to Turkestan. Disjoint deposits are located in the Elbe and Rhine-Main areas around 500 km from the main closed area.

The Sand-Silberscharte needs some calcareous, loosely humus-rich sandy soil in a warm summer climate. It populates gappy sandy lawns, light pine dry forests and inland dunes. It rarely occurs in sandy areas between the Neckar and Main estuaries, on the middle reaches of the Main, in Brandenburg, Saxony-Anhalt and Saxony. Otherwise it is missing in Central Europe.

It is a territorial character of the Jurineo-Koelerietum or an association character of the Koelerion glaucae . Important companion species are: Koeleria glauca , Corynephorus canescens , Euphorbia seguieriana , Artemisia campestris and Medicago minima .

ecology

The silver notch is rooted up to 250 centimeters deep.

Taxonomy

Jurinea cyanoides (L.) Rchb. has the synonyms: Carduus cyanoides L. , Jurinea centaurioides Klokov , Jurinea charcoviensis Klokov , Jurinea pseudocyanoides Klokov .

  • Habitus

  • Basal leaves

  • inflorescence

  • inflorescence

  • Inflorescence and infructescence

literature

  • WS Judd, CS Campbell, EA Kellog, MJ Donoghue: Plant Systematics: a phylogenetic approach. 2nd Edition. Sinauer, Sunderland, Mass 2002., ISBN 0-87893-403-0 .
  • Herbert Frankenhäuser: Mainz in the Ice Age. In: City of Mainz (ed.): Quarterly books for culture, politics, economy, history. Hermann Schmidt, Mainz 1999.
  • 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 .
  • 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 .

Individual evidence

  1. ↑ Lotte Burkhardt: Directory of eponymous plant names . Extended Edition. Botanic Garden and Botanical Museum Berlin, Free University Berlin Berlin 2018. [1]
  2. ↑ 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.  961 .
  3. ↑ Werner Greuter (2006+): Compositae (pro parte majore). - In: W. Greuter & E. von Raab-Straube (eds.): Compositae. Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity. Datasheet Jurinea cyanoides In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity.

Web links

Commons : Sand-Silberscharte ( Jurinea cyanoides )  - Album with pictures, videos and audio files