Sempervivum caucasicum
| Sempervivum caucasicum | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Sempervivum caucasicum |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Sempervivum caucasicum | ||||||||||||
| Rupr. ex Boiss. |
Sempervivum caucasicum is a species of houseleek ( Sempervivum ) in the thick-leaf family(Crassulaceae).
description
Vegetative characteristics
Sempervivum caucasicum grows as a fairly open rosette plant with a diameter of 3 to 5 centimeters and forms short, strong runners . The spatulate, bald to slightly downy-haired leaves have a clearly attached tip. They are green and have small brown tips. Your leaf blade is about 20 millimeters long, 8 millimeters wide and about 3 millimeters thick.
Generative characteristics
The short-glandular, downy-haired flower shoots reach a length of 12 to 30 centimeters. It has lanceolate, pointed, reddish tinged leaves 20 to 50 millimeters long. The little to many-flowered inflorescence is similar to a bouquet. The flowers are 12 to 14 fold. Their lanceolate, pointed sepals are fused together up to half their length. The linear-lanceolate, tapering, short, glandular, downy-haired petals are pink-red and have a purple-colored stripe. The stamens are lilac, the anthers are reddish. The somewhat square-elongated, rounded, straight nectar flakes are flat.
Systematics and distribution
Sempervivum caucasicum is widespread in the Caucasus in Georgia , Azerbaijan and Russia on sandy and calcareous soils, slate rocks in the alpine and subalpine zones at altitudes from 1300 to 2600 meters.
The first description by Pierre Edmond Boissier was published in 1872.
proof
literature
- Henk 't Hart, Bert Bleij, Ben Zonneveld: Sempervivum caucasicum . In: Urs Eggli (Hrsg.): Succulent lexicon. Crassulaceae (thick leaf family) . Eugen Ulmer, Stuttgart 2003, ISBN 3-8001-3998-7 , pp. 352 .
Individual evidence
- ↑ Edmond Boissier: Flora Orientalis: sive, Enumeratio plantarum in Oriente a Graecia et Aegypto ad Indiae fines hucusque observatarum . Volume 2, 1872, p. 796 ( online ).
Web links
- Photo of Sempervivum caucasicum