Dainty St. John's wort

Dainty St. John's wort
	Dainty St. John's Wort ( Hypericum elegans ) in Lower Austria
Systematics
	Rosids
	Eurosiden I
Order :	Malpighiales (Malpighiales)
Family :	St. John's wort family (Hypericaceae)
Genre :	St. John's herbs ( Hypericum )
Type :	Dainty St. John's wort
Scientific name
	Hypericum elegans
	Stephan ex Willd.

The ornamental St. John's wort ( Hypericum elegans ), also called ornamental St. John's wort , is a type of plant from the genus St. John's wort ( Hypericum ) within the St. John's wort family (Hypericaceae).

description

Vegetative characteristics

The ornamental St. John's wort is a partially evergreen , rosette-free , perennial herbaceous plant that reaches heights of 15 to 30 centimeters. It forms aboveground and underground runners . The stem is at least two-edged at the top. The opposite leaves are at least as long as the stem members. The simple leaf blades are oblong-lanceolate and the leaf margin is rolled up.

Generative characteristics

The flowering period extends from June to July. The inflorescence is loose and many-flowered. The hermaphrodite flowers are radially symmetrical with a double flower envelope .

The number of chromosomes is 2n = 32.

ecology

The Zierliche St. John's wort is a hemicryptophyte . The pollination is done by insects.

Occurrence

The ornamental St. John's wort is a European-West Siberian floral element in the submeridional to meridional zone.

In Germany it occurs scattered in Rhineland-Palatinate ( Rheinhessen ), northern Thuringia and rarely in southern Saxony-Anhalt . This limestone species grows on dry and semi- arid continental lawns and in dry shrubbery fringes. In Austria the species is only known from Lower Austria. It is in Central Europe, a characteristic species of the association sanguinei Geranion.

literature

Eckehart J. Jäger, Klaus Werner (Ed.): Excursion flora from Germany . Founded by Werner Rothmaler. 10th edited edition. tape 4 : Vascular Plants: Critical Volume . Elsevier, Spektrum Akademischer Verlag, Munich / Heidelberg 2005, ISBN 3-8274-1496-2 .
Manfred A. Fischer , Karl Oswald, Wolfgang Adler: Excursion flora for Austria, Liechtenstein and South Tyrol. 3rd, improved edition. State of Upper Austria, Biology Center of the Upper Austrian State Museums, Linz 2008, ISBN 978-3-85474-187-9 .

Individual evidence

^ Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas. 8th edition. Verlag Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3131-5 . Page 664.

Web links

Commons : Zierliches St. John's Wort ( Hypericum elegans ) - Album with pictures, videos and audio files

Dainty St. John's wort . In: BiolFlor, the database of biological-ecological characteristics of the flora of Germany.
Hypericum elegans Stephan ex Willd., Zierliches Hartheu. In: FloraWeb.de.
Profile and distribution map for Bavaria . In: Botanical Information Hub of Bavaria .

[Oberdorfer2001-1] Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas. 8th edition. Verlag Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3131-5 . Page 664.