Alpenscharten

from Wikipedia, the free encyclopedia
Alpenscharten
Dwarf Alpenscharte (Saussurea pygmaea)

Dwarf Alpenscharte ( Saussurea pygmaea )

Systematics
Euasterids II
Order : Astern-like (Asterales)
Family : Daisy family (Asteraceae)
Subfamily : Carduoideae
Tribe : Cardueae
Genre : Alpenscharten
Scientific name
Saussurea
DC.

The saussurea ( Saussurea ) forms a genus in the subfamily of Carduoideae within the family of Compositae (Asteraceae). The approximately 300 species thrive mainly in cool areas of the northern hemisphere .

description

Illustration of Saussurea veitchiana
Total inflorescence with flower baskets of Estonian saussurea ( Saussurea alpina subsp. Esthonica )

Vegetative characteristics

The species of the genus Alpenscharten are perennial herbaceous plants . Depending on the species, they reach heights of only 5 centimeters up to 3 meters. In some species, the whole plants or the inflorescences are as if wrapped in wool (depending on the altitude of the areas). The leaves are mostly in well-developed leaf rosettes and also alternately spiral on the stem.

Generative characteristics

The total inflorescences are composed of small cup-shaped inflorescences. Many bracts are usually three to five, rarely up to ten rows. As with all Carduoideae, only tubular flowers are present; in this genus ten to twenty per flower head.

The achenes are cylindrical or square to pentagonal. The pappus usually consists of two rows of bristles.

Systematics and distribution

Filz-Alpenscharte ( Saussurea discolor )

Taxonomy

The genus Saussurea was in 1810 by Augustin Pyrame de Candolle in Annales du Muséum National d'Histoire Naturelle , Volume 16, pages 156 and 198-203, plates 10-13. set up. The botanical genus name Saussurea honors both the Swiss naturalist Horace-Bénédict de Saussure (1740–1799) and the Swiss natural scientist Nicolas Théodore de Saussure (1767–1845).

External system

The genus Saussurea belongs to subtribe Carduinae from the tribe Cardueae in the subfamily of Carduoideae within the family of the Asteraceae .

Species and their distribution

There are around 300 species of Saussurea , almost all of which are found in Eurasia . In North America, six species are widespread in northern Australia there is a way.

Here is a list of selected species:

use

Especially Xuelian laniceps and Costus ( Saussurea costus ) (with the drug: Costuswurzel) have a pharmaceutical use.

swell

literature

Individual evidence

  1. Lotte Burkhardt: Directory of eponymous plant names. Extended Edition. Botanic Garden and Botanical Museum Berlin, Free University Berlin Berlin 2018. online.
  2. ^ Saussurea in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved July 9, 2020.
  3. Entries on Saussurea at Plants For A Future

Web links

Commons : Alpenscharten ( Saussurea )  - Collection of images, videos and audio files

further reading

  • Eckhard von Raab-Straube: Phylogenetic Relationships in Saussurea (Compositae, Cardueae) sensu lato, Inferred from Morphological, ITS and trnL-trnF Sequence Data, with a Synopsis of Himalaiella gen. Nov., Lipschitziella and Frolovia. In: Willdenowia, Volume 33, Issue 2, 2003, pp. 379-402. JSTOR 3997439 doi : 10.3372 / wi.33.33214
  • Y.-S. Chen: Five new species of Saussurea (Asteraceae, Cardueae) from the Hengduan Mountains region, southwestern China. In: Phytotaxa , Volume 170, Issue 3, 2014, pp. 141–154. doi : 10.11646 / phytotaxa.170.3.1