Hylotelephium

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Hylotelephium
Red sedum (Hylotelephium telephium)

Red sedum ( Hylotelephium telephium )

Systematics
Nuclear eudicotyledons
Order : Saxifragales (Saxifragales)
Family : Thick-leaf family (Crassulaceae)
Subfamily : Sempervivoideae
Tribe : Telephieae
Genre : Hylotelephium
Scientific name
Hylotelephium
H.Ohba

Hylotelephium is a genus of plants from the family of thick leaf plants (Crassulaceae). The botanical name of the genus is derived from the Greek words ύλη hyle for "forest" and τηλέφιον telephion , a common name for some of the species that grow in open forests.

description

Section Hylotelephium : Great stonecrop ( Hylotelephium telephium subsp. Maximum )
Section Hylotelephium : Magnificent sedum plant ( Hylotelephium spectabile )
Section Hylotelephium : Mountain Stonecrop ( Hylotelephium telephium subsp. Fabaria )
Sieboldia Section : Round-leaved Stonecrop ( Hylotelephium anacampseros )
Sieboldia section : Hylotelephium cauticola
Sieboldia Section : Siebold's Stonecrop (
Hylotephium Sieboldii )

The species of the genus Hylotelephium are perennial , herbaceous , succulent plants with a mostly fleshy beet-like rhizome . Some Asian species have fibrous or wooden roots. Their broad, flat, thick herbaceous leaves are unsporn and are arranged alternately or opposite or form whorls of three to five leaves.

The flower shoot appears from adventitious buds of the rhizome or from the basal nodes of the flower shoots of the previous year. The flower shoots are usually covered with numerous leaves. Some species develop additional sterile shoots. The many-flowered, dense inflorescence is terminal and consists of compound cymes that are compound or paniculate or doldig-equinoxed in shape. The flowers are hermaphrodite, stalked and obdiplostemon . They are usually fivefold and rarely fourfold. Their green sepals are somewhat fleshy and only slightly fused together at their base. The membranous petals are free and always longer than the sepals. The stamens are opposite to the petals and are fused with them at the base. Their stamens are not papilose , the anthers are basifix (i.e. fused with the stamens at the base). The small nectar flakes are usually light yellow. The carpels are free, stalked at the base and not bulged on the ventral side. Its placenta is at the edge, its anatropic ovules are somewhat ellipsoidal. The slender stylus is always shorter than the ovary .

The fruit is an upright, many- seeded follicle fruit . The seeds it contains are cylindrical and about a millimeter in size. Its brown seed coat is fragile and striped lengthways with tiny stripes.

Systematics and distribution

The genus Hylotelephium is common in Europe, the Caucasus, Siberia, East Asia and North America.

The species of the Sedum telephium group were listed for a time as a section ( Sedum sect. Telephium Gray ) and later as a subgenus ( Sedum subgen. Telephium (Gray) RTClausen ) of the genus Sedum . In 1977, Hideaki Ohba (* 1943) created the genus Hylotelephium due to the different structure of the ovary and other morphological features, and assigned 28 species to the genus Sedum .

According to Hideaki Ohba, the genus Hylotelephium is divided into three sections with the following species:

  • Section Hylotelephium
    • Hylotelephium angustum (Maxim.) H. Ohba : It occurs in two varieties in the Chinese provinces of Gansu, Hubei, Ningxia, Qinghai, Shaanxi, Shanxi, Sichuan and Yunnan at altitudes between 1400 and 3500 meters above sea level.
    • Hylotelephium bonnafousii (Raym.-Hamet) H. Ohba : It occurs in western Hubei and eastern Sichuan.
    • Hylotelephium callichromum H. Ohba
    • Hylotelephium caucasicum (uppercase) H. Ohba (Syn .: Sedum caucasicum (uppercase) Boriss. ), Homeland: Turkey, Caucasus, Iran
    • Hylotelephium erythrostictum (Miq.) H. Ohba : It occurs in Japan, Korea, Russia and China.
    • Ewers stonecrop ( Hylotelephium ewersii (Ledeb.) H. Ohba ; Syn .: Sedum ewersii Ledeb. ), Native to: Siberia, Central Asia, Mongolia, China (Sinkiang), Himalayas, Afghanistan
    • Hylotelephium mingjinianum (SH Fu) H. Ohba : It occurs in the Chinese provinces of Anhui, Guangxi, Hubei, Hunan and Zhejiang.
    • Hylotelephium mongolicum (Franchet) SH Fu : It occurs in northeastern Hebei .
    • Hylotelephium pallescens (Freyn) H. Ohba : It occurs in Russia, Japan, Korea, Mongolia and China.
    • Hylotelephium pseudospectabile (Praeger) SH Fu : It occurs in Hebei, Jilin , Liaoning and in Korea .
    • Hylotelephium sordidum (Maxim.) H. Ohba , with the varieties:
      • Hylotelephium sordidum var. Oishii (Ohwi) H. Ohba & M. Amano
      • Hylotelephium sordidum var. Sordidum
    • Magnificent sedum or beautiful sedum ( Hylotelephium spectabile (Boreau) H. Ohba ; Syn .: Sedum spectabile Boreau ), native to: Korea, Manchuria, China. With two varieties.
    • Hylotelephium subcapitatum (Hayata) H. Ohba : It occurs in Taiwan at altitudes between 3000 and 3900 meters above sea level.
    • Hylotelephium tangchiense R.X. Meng : It occurs in the Chinese province of Anhui .
    • Hylotelephium tatarinowii (Maxim.) H. Ohba : It occurs in two varieties in China and in Mongolia.
    • Hylotelephium telephioides (Michx.) H. Ohba : It occurs in Europe, Russia, Kazakhstan, Japan, China and in North America.
    • Red sedum plant ( Hylotelephium telephium (L.) H. Ohba ; Syn .: Sedum telephium L. ), with the subspecies:
      • Mountain Stonecrop ( Hylotelephium telephium subsp. Fabaria (WDJ Koch) H. Ohba ; Syn .: Sedum fabaria W.DJ Koch )
      • Big fat hen ( Hylotelephium telephium subsp. Maximum (L.) Ohba ; Syn .: Sedum maximum (L.) Hoffmann )
      • High stonecrop ( Hylotelephium telephium subsp. Ruprechtii (Jalas) H. Ohba ; Syn .: Sedum telephium L. . Subsp ruprechtii Jalas )
      • Purple Stonecrop ( Hylotelephium telephium (L.) H. Ohba . Subsp telephium ; Syn .: Sedum telephium L subsp.. Telephium ; Sedum purpureum (L.) Link )
    • Hylotelephium uralense (Rupr.) VV Byalt
    • Hylotelephium ussuriense H. Ohba , with the varieties:
      • Hylotelephium ussuriense var. Tsugaruense (H. Hara) H. Ohba
      • Hylotelephium ussuriense var. Ussuriense
    • Hylotelephium verticillatum (L.) H. Ohba : It occurs in China, Korea, Japan and Russia with the varieties:
      • Hylotelephium verticillatum var. Lithophilos H. Ohba
      • Hylotelephium verticillatum var. Verticillatum
    • Hylotelephium viride (Makino) H. Ohba
    • Hylotelephium viridescens (Nakai) H. Ohba
    • Hylotelephium viviparum (Maxim.) H. Ohba : It occurs in Russia, Korea and in the Chinese provinces of Jilin and Liaoning.
  • Sieboldia Section (H.Ohba) H.Ohba
    • Round-leaved stonecrop ( Hylotelephium anacampseros (L.) H. Ohba ; Syn .: Sedum anacampseros L. ), native to the mountains of Europe
    • Hylotelephium cauticola (Praeger) H. Ohba (Syn .: Sedum cauticola Praeger ), Origin : Japan
    • Hylotelephium cyaneum (Rudolph) H. Ohba (Syn .: Sedum cyaneum Rudolph ); Home: Eastern Siberia, Amur region, Sakhalin, Kamchatka
    • Hylotelephium pluricaule H. Ohba (Syn .: Sedum pluricaule Kudô ), native to the Amur region, Sakhalin, Japan
    • Siebold's Stonecrop ( Hylotelephium Sieboldii (Regel) H. Ohba ), origin: Japan, with the varieties:
      • Hylotelephium Sieboldii var. Chinense H. Ohba
      • Hylotelephium Sieboldii var. Ettyuense (Tomida) H. Ohba
      • Hylotelephium Sieboldii var. Sieboldii
  • Populisedum Section (A.Berger) H.Ohba

There is also the hybrid Hylotelephium × furusei H. Ohba .

use

Many species of the genus are used as ornamental plants and are frost hardy . They are ideal plants for USDA hardiness zones 3 through 5.

proof

literature

  • Urs Eggli (ed.): Succulent lexicon. Crassulaceae (thick leaf family) . Eugen Ulmer, Stuttgart 2003, ISBN 3-8001-3998-7 , pp. 138-146 .
  • SB Gontcharova, EV Artyukova, AA Gontcharov: Phylogenetic relationships among members of the subfamily Sedoideae (Crassulaceae) inferred from the ITS region sequences of nuclear rDNA . In: Russian Journal of Genetics . Volume 42, No. 6, pp. 654-661, 2006, doi : 10.1134 / S102279540606010X
  • Hideaki Ohba: The taxonomic status of Sedum telephium and its allied species (Crassulaceae) . In: Botanical Magazine . Volume 90, No. 1, pp. 41-56, 1977, doi : 10.1007 / BF02489468 .
  • Ray Stephenson: Succulents for most gardens. Part 2 Hylotelephium . In: Cactus and Succulent Journal . Volume 77, No. 4, pp. 204-207, 2005
  • Walter Erhardt among others: The big pikeperch. Encyclopedia of Plant Names . Volume 2. Verlag Eugen Ulmer, Stuttgart 2008. ISBN 978-3-8001-5406-7

Individual evidence

  1. Samuel Frederick Gray: A natural arrangement of British plants: according to their relations to each other as pointed out by Jussieu, De Candolle, Brown, & c . Volume 2, p. 539. London 1821, online .
  2. ^ Robert Theodore Clausen: Sedum of North America North of the Mexican Plateau . P. 70, Ithaca, NY 1975
  3. ^ H. Ohba: Hylotelephium . In: Urs Eggli: Succulents Lexicon Volume 4. Crassulaceae (thick-leaf plants) . 2003, pp. 138-146
  4. a b c d e f g h i j k l m Kunjun Fu, Hideaki Ohba & Michael G. Gilbert: Crassulaceae Candolle. In: Flora of China, vol. 8, Crassulaceae. Hylotelephium
  5. Ray Stephenson: Succulents for most gardens. Part 2 Hylotelephium , p. 204

Web links

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