Echinopsis ferox
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Echinopsis ferox |
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| ( Britton & Rose ) Backeb. |
Echinopsis ferox is a species of plant in the genus Echinopsis from the cactus family(Cactaceae). The specific epithet stands for Latin "wild" or "defiant".
description
Echinopsis ferox grows single, spherical to short cylindrical and reaches a height of 20 to 30 (up to 50) cm and up to 30 cm in diameter. The roughly 30 ribs run in a spiral shape and are set with sharp-edged cusps. The oval areoles are about 3 cm apart and have a light wool felt. The thorns can almost completely cover the body, are long, stiff, curved to straight, sometimes hooked, light brown to horn-colored, darker in the new shoot and later graying. There are 2 to 5, to 18 cm long, upwardly curved central spines and 8 to 14 radial spines that are 3 to 7 cm long and radiate out to the sides.
The funnel-shaped flowers reach a length of 9 to 11 (to 13) centimeters and have a diameter of 6 to 8 (to 10) centimeters. They appear laterally in the upper half of the shoot. The color of the petals varies between white, pink, purple, yellow and orange, the stamens are yellowish and rise above the greenish hubs . The flower tube is greenish with pointed scales, the armpits appear darker and covered with gray wool. The spherical to barrel-shaped fruits are greenish and tear open. The black-brown seeds are 1.5 mm long and 0.7 mm thick.
Distribution, systematics and endangerment
Echinopsis ferox is distributed in Bolivia in the departments of Oruro , Potosí , Chuquisaca and Tarija , in Argentina in the provinces Jujuy and Salta and in Chile in the province of Iquique , at altitudes of 2000 to 3500 m (in Chile up to 4000 m). The large range of distribution results in a corresponding wealth of forms.
It was first described as Lobivia ferox in 1922 by Nathaniel Lord Britton and Joseph Nelson Rose . Curt Backeberg placed the species in the genus Echinopsis in 1936 . In 1987 Walter Rausch distinguished the following varieties in his work Lobivia 85 :
- Echinopsis ferox var. Longispina (Britton & Rose) Rausch , a slightly smaller variety
- Echinopsis ferox var. Potosina (Werderm.) Intoxication , with fewer ribs and a central spine
Well-known synonyms of Echinopsis ferox are:
- Pseudolobivia ferox (Britton & Rose) Backeb. , Prickly Wilderness: 219th 1942
- Lobivia longispina Britton & Rose , The Cact. 3:51. 1922
- Echinopsis potosina Werderm. , Notepad Bot. Garden Berlin-Dahlem 11: 267. 1931
- Lobivia aureolilacina Cárdenas , Cact. Succ. J. (US) 33: 110, figs. 64, 65. 1961
- Lobivia horrida F. Ritter , Taxon 12: 124. 1963
In the Red List of Threatened Species of the IUCN , the species is listed as " Least Concern (LC) ". H. listed as not endangered.
proof
literature
- Detlev Metzing: Echinopsis ferox (Britton & Rose) Backeberg . In: Cacti and other succulents . Volume 62, Number 3, 2011, pp. IX-X.
Individual evidence
- ^ NL Britton , JN Rose : The Cactaceae. Descriptions and Illustrations of Plants of the Cactus Family . tape III . The Carnegie Institution of Washington, Washington 1922, p. 50-51 .
- ↑ Cactus ABC . 1936, p. 220.
- ↑ Echinopsis ferox in the IUCN Red List of Threatened Species 2013.2. Posted by: Lowry, M., Demaio, P. & Faundez, L., 2010. Retrieved March 1, 2014.
