Stone clover
| Stone clover | ||||||||||||
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Stone clover ( Trifolium saxatile ) |
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| Trifolium saxatile | ||||||||||||
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The stone clover ( Trifolium saxatile ) is a plant from the genus clover ( Trifolium ) in the family of legumes (Fabaceae). It is placed within the genus in the Trifolium section , Arvensia subsection . The species should not be confused with the genus sweet clover ( Melilotus ).
description
The stone clover is an annual, herbaceous plant that reaches heights of between five and 15 centimeters. It forms loose lawns up to 50 cm in size. The stems are prostrate to ascending and covered with hair. The leaves are threefold, with the individual leaflets 4 to 6 millimeters long. They are inverted heart-shaped and hairy on both sides.
The rounded inflorescences are six to eight millimeters wide and are surrounded by stipules. The sessile flowers are 3 to 4 millimeters long. The calyx is densely hairy. The inconspicuous crown is white or pink and as long as the chalice. The flowering period extends from July to August.
distribution
The stone clover has its main distribution area in the western Alps. There it occurs in the Dauphiné ( Mont Pelvoux ), Savoy , the Pennine Alps , Piedmont . Also widespread in Tyrol . It grows at altitudes of up to 3100 meters.
The plant prefers dry rubble, moraine debris, sandy alluvion and silicate gravel (mica schist) as a location .
Danger
The Fauna-Flora-Habitat Directive of the European Union lists Trifolium saxatile as endangered.
literature
- Thomas Muer, Oskar Angerer: Alpine Plants , Eugen Ulmer Verlag, Stuttgart 2004, ISBN 3-8001-3374-1 .
- Manfred A. Fischer , Wolfgang Adler, Karl Oswald: Excursion flora for Austria, Liechtenstein and South Tyrol. 2nd, improved and enlarged edition. State of Upper Austria, Biology Center of the Upper Austrian State Museums, Linz 2005, ISBN 3-85474-140-5 .
Web links
- Trifolium saxatile All. In: Info Flora , the national data and information center for Swiss flora . Retrieved November 18, 2015.
- Trifolium saxatile inthe IUCN 2013 Red List of Endangered Species . Posted by: Gygax, A., Montagnani, C., Gargano, D., Bernhardt, KG & Gigot, G., 2010. Retrieved September 21, 2013.
Individual evidence
- ↑ Council Directive 92/43 / EEC of May 21, 1992 on the conservation of natural habitats and of wild animals and plants (Habitats Directive) - version of January 1, 2007. January 1, 2007, accessed on August 17, 2020 .