Orostachys

Orostachys malacophylla var iwarenge ( Makino ) H.Ohba

Orostachys is a genus of flowering plants in the family Crassulaceae ( Crassulaceae ). She also wears the German name Star Wurz. The botanical name of the genus derives Orostachys Óros from a Greek words for mountain and Stachys for ear off. It contains about 13 species.

Description

Orostachys - two species are mostly herbaceous perennial plants, which are more or less succulent. The roots are fibrous. In the first year the leaves are borne in solitary, basal, dense rosettes. In the second year of a 5 to 60 cm long, leafy stems is formed. Especially the fleshy leaves store water. The change-constant leaves are oblong to ovate and often have purple spots. The leaf ends have a cartilaginous to spiny, white lace. The leaf margins are usually smooth. Stipules absent.

The terminal, usually branched, composed of aged men part inflorescences total inflorescences are relatively large and narrow pyramidal to cylindrical and contain many flowers and foliage leaf-like bracts. The least very short -stalked flowers are hermaphroditic and fünfzählig. The free sepals are usually shorter than the petals. The five predominantly yellow, rarely white, yellow-green or pink to reddish petals are almost free. There are two circles with five stamens present. The yellow nectar scales are relatively small. The upright carpels are free and contain many ovules. The pens are narrow.

The many-seeded follicles possess a beak -shaped end. The seeds are small.

Systematics and distribution

The genus Orostachys is distributed only in eastern Asia: China ( eight species), Japan ( six species), Kazakhstan, Korea ( five species), Mongolia and Russia.

The first publication of the genus name Orostachys took place in 1809 by Friedrich Ernst Ludwig von Fischer in Memoires de la Societe Imperiale des Naturalistes de Moscou, Volume 2, page 270 The often quoted other authors Augustin- de Candolle Pyrame, Robert Sweet or Alwin Berger are not for a first publication of this genus recognized.

The genus belongs to the subtribe Orostachys Telephiinae from the tribe Sedeae in the subfamily Sedoideae within the family Crassulaceae.

The genus is divided into two sections and includes the following types:

  • Section Orostachys Orostachys boehmeri ( Makino ) H. Hara, Origin: Japan
  • Orostachys cartilaginea V.N. Borisova: It grows on rocks of low mountains in Russia and the Chinese provinces of Heilongjiang, Jilin, Liaoning, Nei Mongol, Shandong.
  • Orostachys chanetii ( H.Léveillé ) A.Berger: It grows on rocks on slopes and on rooftops at altitude 400-1700 meters in Gansu, Hebei, Shanxi, Sichuan.
  • Orostachys fimbriata ( Turcz. ) A.Berger: rocky areas on slopes, on house roofs and moss-covered tree trunks usually below 1600 m (up to 3500 meters in Gansu and Qinghai ) in Korea, Mongolia, Russia, and the Chinese provinces of Anhui, Gansu, Hebei, Heilongjiang, Henan, Hubei, Jiangsu, Liaoning, Nei Mongol, Ningxia, Qinghai, Shaanxi, Shandong, Shanxi, Zhejiang.
  • Orostachys japonica ( Maxim. ) A.Berger: It grows on rocks of low mountains, along rivers in Japan, Korea, Russia, and the Chinese provinces of Anhui, eastern Heilongjiang, Jiangsu, Shandong, Zhejiang.
  • Orostachys malacophylla ( Pall. ) Fish: It grows in crevices at altitudes 1200-1800 meters in Japan, Korea, Mongolia, Russia, and the Chinese provinces of Hebei, Heilongjiang, Jilin, Liaoning, Nei Mongol, . with the subspecies and varieties: Orostachys malacophylla subsp. lioutchenngoi
  • Orostachys malacophylla subsp. malacophylla
  • Orostachys malacophylla var aggregata ( Makino ) H. Ohba
  • Orostachys malacophylla var iwarenge ( Makino ) H. Ohba
  • Section Schoenlandia H. Ohba Orostachys aliciae ( Raym. - Hamet ) H. Ohba, with the varieties: Orostachys aliciae var aliciae
  • Orostachys aliciae var komarovii ( Raym. - Hamet ) H. Ohba

Use

Some species are used as ornamental plants.

Japonica Orostachys of the medical effects was examined.

Swell

  • Kunjun Fu, Hideaki Ohba & Michael G. Gilbert: Crassulaceae in the Flora of China, Volume 8, page 206: Orostachys - Online. (Section Description and systematics)
  • Ghulam Rasool Sarwar: Crassulaceae in the Flora of Pakistan: Orostachys - Online. ( Description section )
  • S. & H. Ohba Mayuzumi: The phylogenetic position of East Asian Sedoideae ( Crassulaceae ) inferred from chloroplast and nuclear DNA sequences, Systematic Botany in, 29, 2004, pp. 587-598. . ( Section systematics)
  • Walter Erhardt et al: The big walleye. Encyclopedia of plant names. Volume 2 Eugen Ulmer Verlag, Stuttgart, 2008. ISBN 978-3-8001-5406-7
Augustin Pyramus de Candolle Robert Sweet (botanist)
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