Carniolan ragwort

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Carniolan ragwort
Carniolica (Jacobaea incana subsp. Carniolica)

Carniolica ( Jacobaea incana subsp. Carniolica )

Systematics
Family : Daisy family (Asteraceae)
Subfamily : Asteroideae
Tribe : Senecioneae
Genre : Jacobaea
Type : Gray groundwort ( Jacobaea incana )
Subspecies : Carniolan ragwort
Scientific name
Jacobaea incana subsp. carniolica
( Willd. ) B. North. & Greuter

The Krainer groundsel ( Jacobaea incana (L.) Veldkamp subsp. Carniolica (Willd.) B.Nord. & Greuter , Syn .: Senecio incanus subsp. Carniolicus ) is a subspecies of the gray ragwort ( Jacobaea incana ) from the genus Jacobaea within the family of the daisy family (Asteraceae). In Austria it is also known as Gelber Speik .

description

Several specimens of the Carniolan ragweed
Carniolan ragwort in the Ötztal in Tyrol

The Krainer ragwort grows as a gray-felted to bald perennial herbaceous plant and reaches heights of 5 to 15 centimeters.

The basal leaves are arranged in a rosette, the alternate stem leaves are entire or pinnately lobed to the middle.

The flowering period extends from July to September. The cup-shaped inflorescences are composed of 3 to 15 in a cupped cluster-like overall inflorescence . The inner bracts have a red tip. An inflorescence is between 10 and 20 millimeters wide and contains three to six female tongues with 5 to 8 millimeters in length and five to ten hermaphroditic tubular flowers . Both are yellow to orange-yellow.

The number of chromosomes is 2n = 120.

Occurrence

Carniolan ragwort is widespread in the Eastern Alps as far as the Carpathian Mountains . Its distribution area extends in Germany, Switzerland, Austria, Italy, Slovenia, Poland, Slovakia, Romania and Ukraine.

In Austria it is often to scattered from the subalpine to alpine altitude level in the federal states of Upper Austria, Styria, Carinthia, Salzburg, Tyrol and Vorarlberg. It is particularly common in the central Alps. In the whole of Carniola and all of Slovenia , due to the lack of suitable, silicate substrates, the clan is only widespread on the Weinasch in the Karawanken , from where the name of the subspecies is derived.

In Germany, Krainer ragwort occurs only in the Allgäu Alps at altitudes between 1800 and 2350 meters on chert, sandstone or dark slate. Overall, it is very rare there and threatened by grazing and tourism. In Bavaria the clan may already have been destroyed.

This lime-avoiding species prefers dry, stony lawns, moraines and rubble as a location. It is a character species of the Primulo-Caricetum curvulae from the association Caricion curvulae, but also occurs in high-altitude Nardion societies. In the Upper Austrian Limestone Alps, it occurs only in the strongly acidic upholstered sedge lawns of the Warscheneck highlands.

literature

Individual evidence

  1. ↑ a b Werner Greuter (2006+): Compositae (pro parte majore). In: W. Greuter & E. von Raab-Straube (ed.): Compositae. : Data sheet Jacobaea carniolica In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity.
  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.  955 .
  3. ↑ Erhard Dörr, Wolfgang Lippert : Flora of the Allgäu and its surroundings. Volume 2, IHW, Eching 2004, ISBN 3-930167-61-1 , p. 619.

Web links

Commons : Krainer Greiskraut  - Album with pictures, videos and audio files