Richers wort
| Richers wort | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Richers wort ( Hypericum richeri subsp. Burseri ) in the French Pyrenees |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Hypericum richeri | ||||||||||||
| Vill. |
Richer St. John's Wort ( Hypericum richeri ) is a plant from the genus of hypericum ( Hypericum ) in the family of hypericaceae (Hypericaceae).
description
Richers St. John's Wort is a perennial plant that reaches heights of 10 to 60 centimeters. Their creeping, knotty base axis lignified. There are several arching ascending stems with two edges at the top . The seated, cross-opposite leaves are up to 5.5 centimeters long, pointed-ovoid and on the edge of the underside covered with black, seated glands.
One to ten flowers are arranged in dense, golden paniculate inflorescences. The five sepals are up to 8 millimeters long. The five yellow petals are up to 2 centimeters long, their edge has gland-headed fringes and on the surface there are black, sessile glands. The 90 or so stamens have grown together to form three bundles. There are three styluses with red scars . The flowering period extends from June to August.
The capsule fruit has black to orange-colored glands.
Occurrence
Richers St. John's wort occurs in the western and southern Alps to the east as far as the Bergamasque Alps , as well as in the Pyrenees .
Richers St. John's wort can be found at altitudes of 1000 to 2400 meters in rocky slopes, bushes and on stony pastures. It thrives best on calcareous soils .
Systematics
The first publication of Hypericum richeri was by Dominique Villars . The specific epithet richeri honors the French botanist Pierre Richer de Belleval († 1632).
Of Hypericum richeri there are about three subspecies:
- Hypericum richeri subsp. burseri (DC.) Nyman : The home is France and Spain.
- Hypericum richeri subsp. grisebachii (Boiss.) Nyman : Home is the Balkan Peninsula, Romania and Ukraine.
- Hypericum richeri subsp. richeri : The home is France, Switzerland and Italy.
literature
- Gunter Steinbach (Ed.): Alpine flowers (Steinbach's natural guide). Mosaik Verlag GmbH, Munich 1996, ISBN 3-576-10558-1 .
Individual evidence
- ^ Karol Marhold, 2011: Clusiaceae. Datasheet In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity. Berlin 2011
- ↑ a b c d Rafaël Govaerts (Ed.): Hypericum richeri. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved May 14, 2017.
Web links
- Hypericum richeri Vill. In: Info Flora , the national data and information center for Swiss flora .