Sempervivum atropatanum
| Sempervivum atropatanum | ||||||||||||
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| Scientific name | ||||||||||||
| Sempervivum atropatanum | ||||||||||||
| J. Parn. |
Sempervivum atropatanum is a species of houseleek ( Sempervivum ) in the thick-leaf family(Crassulaceae).
description
Vegetative characteristics
Sempervivum atropatanum grows as a rosette plant with a diameter of 2 to 5.5 centimeters and forms a few, 1 to 3 centimeters long runners . The elongated elliptical leaves are finely pointed. Your leaf blade is about 15 millimeters long and 7 millimeters wide.
Generative characteristics
The flowering shoot reaches a length of 10 to 20 centimeters. It has leaves that are longer and wider than those of the leaf rosette . The inflorescence consists of four to seven-flowered cymes with two to three coils. The ten- to eleven-fold flowers are on 1 to 3 millimeter long peduncles and have a diameter of about 2 centimeters. Their sepals are fused together over a length of up to 2 millimeters. They are narrow triangular, have a purple tip and are 4 to 5 millimeters long. The narrow, elongated, pointed, pale yellow petals are 9 to 10 millimeters long and about 1.5 millimeters wide. The stamens are bright yellow, the bald pen is about 1.5 millimeters long. The rounded nectar flakes are large.
Systematics and distribution
Sempervivum atropatanum is common in northern Iran at altitudes of around 1950 meters.
The first description by John Adrian Naicker Parnell was published in 1989.
proof
literature
- Henk 't Hart, Bert Bleij, Ben Zonneveld: Sempervivum atropatanum . In: Urs Eggli (Hrsg.): Succulent lexicon. Crassulaceae (thick leaf family) . Eugen Ulmer, Stuttgart 2003, ISBN 3-8001-3998-7 , pp. 351 .
Individual evidence
- ↑ John AN Parnell: A New Sempervivum Species (Crassulaceae) from Iran . In: Willdenowia . Volume 18, Number 2, pp. 419-421 ( JSTOR 399635 ).
Web links
- Photos of Sempervivum atropatanum