Oreocereus ritteri
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Oreocereus ritteri |
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| Cullmann |
Oreocereus ritteri is a species of Oreocereus in the cactus family(Cactaceae). The specific epithet ritteri honors the German cactus specialist Friedrich Ritter .
description
Oreocereus ritteri grows shrubby, is usually branched at the base and forms groups of 2 to 4 meters in diameter and heights of 1 to 1.5 meters. The cylindrical, gray-green shoots are 1 to 2 meters long and 7 to 10 centimeters in diameter. There are 12 to 14 ribs that are deeply indented between the areoles . The thorny areoles are densely covered with numerous, white hairs . The one or two protruding, bright yellow to orange-yellow central spines are straight to slightly curved downwards and 2 to 10 centimeters long. The up to ten radiant radial spines are whitish, have a darker tip and are up to 2 centimeters long.
The crooked red flowers are up to 11 centimeters long and have a diameter of 5 centimeters. The spherical fruits are yellowish green and reach a diameter of 3 to 5 centimeters.
Distribution and systematics
Oreocereus ritteri is widespread in the Ayacucho region of Peru . It was first described in 1958 by Willy Cullmann .
proof
literature
- Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 484 .
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 204.
- ↑ Cacti and other succulents . Volume 9, Number 7, 1958, pp. 101-103.
