Sempervivum altum
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Sempervivum altum is a species of houseleek ( Sempervivum ) in the thick-leaf family(Crassulaceae). The specific epithet altum comes from Latin , means 'high' and refers to the occurrence of the species at great heights.
description
Vegetative characteristics
Sempervivum altum grows as a rather loose rosette with a diameter of 2.5 to 4 centimeters. The obscure lanceolate leaves are light green and have an abrupt tip. The outer leaves have a striking scarlet tip when exposed to sunlight. The leaf blade is about 19 millimeters long, 8 millimeters wide and about 3 millimeters thick.
Generative characteristics
The flowering shoot reaches a length of 12 centimeters. It has elongated leaves about 20 millimeters long and 8 millimeters wide. The 12 to 13-fold flowers have a diameter of up to 3 centimeters. Their sepals are spread out. The red-purple petals are about 12 millimeters long and 3 millimeters wide. They are keeled green. The stamens are red, the dust bag orange and pen red.
Systematics and distribution
Sempervivum altum is common in Georgia in the Caucasus .
The first description by William Bertram Turrill was published in 1936.
proof
literature
- Henk 't Hart, Bert Bleij, Ben Zonneveld: Sempervivum altum . In: Urs Eggli (Hrsg.): Succulent lexicon. Crassulaceae (thick leaf family) . Eugen Ulmer, Stuttgart 2003, ISBN 3-8001-3998-7 , pp. 349 .
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 8.
- ↑ Izvestiya na Bulgarskoto Botanichesko Druzhestvo . Volume 7, 1936, p. 126.
Web links
- Photo from Sempervivum altum