Hypericum perfoliatum

Hypericum perfoliatum
Hypericum perfoliatum
Systematics
Rosids Eurosiden I Order : Malpighiales (Malpighiales) Family : St. John's wort family (Hypericaceae) Genre : St. John's herbs ( Hypericum ) Type : Hypericum perfoliatum
Scientific name
Hypericum perfoliatum
L.

Hypericum perfoliatum is a plant from the genus of hypericum ( Hypericum ).

features

Hypericum perfoliatum is a perennial stem hemicryptophyte that reaches heights of (15) 25 to 75 centimeters. The stem is strong and erect or ascending. The leaves measure 1.3 to 60 × 15 millimeters and are heart-shaped, encompassing stems, translucent and dotted with black. The sepals have long-stalked glands and are upright with fruit. The capsule is egg-shaped and has protruding glands.

The flowering period extends from March to June.

The number of chromosomes is 2n = 14.

Occurrence

Hypericum perfoliatum occurs mainly in the Mediterranean region from Macaronesia to southwestern Turkey. The species grows in the Phrygana , in steppe lawns, on fallow land, in damp, shady ruderal areas on deep loam at altitudes from 0 to 2000 meters.

literature

• Ralf Jahn, Peter Schönfelder: Excursion flora for Crete . With contributions by Alfred Mayer and Martin Scheuerer. Eugen Ulmer, Stuttgart (Hohenheim) 1995, ISBN 3-8001-3478-0 , p. 194-195 .

Individual evidence

1. ↑ Hypericum perfoliatum at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
2. ↑ Rafaël Govaerts (Ed.): World Checklist of Selected Plant Families. Hypericum . Royal Botanic Gardens, Kew. Last accessed on May 14, 2017.