Regensburg dwarf gorse

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Regensburg dwarf gorse
Regensburg dwarf gorse (Chamaecytisus ratisbonensis)

Regensburg dwarf gorse ( Chamaecytisus ratisbonensis )

Systematics
Eurosiden I
Order : Fabales (Fabales)
Family : Legumes (Fabaceae)
Subfamily : Butterflies (Faboideae)
Genre : Dwarf gorse ( Chamaecytisus )
Type : Regensburg dwarf gorse
Scientific name
Chamaecytisus ratisbonensis
( Schaeff. ) Rothm.

The Regensburg brooms ( Chamaecytisus ratisbonensis (Schaeff) Rothm.. , Syn. : Cytisus ratisbonensis . Schaeff ), even silk hair brooms called, is a plant type from the genus brooms ( Chamaecytisus ) and belongs to the family Leguminosae (Fabaceae). The genus is also often called goat clover .

description

The deciduous, perennial woody plant grows as a shrub (Chamaephyte) and reaches a stature height between 10 and 30 (50) centimeters. The rounded branches are thornless. Young shoots are gray-haired close-fitting.

The leaves are pinnate to three, with the feathers one to two centimeters long. The leaves are long-stalked and arranged alternately and, above all, densely hairy below.

The flowers are light yellow. The flag has a brownish spot and is significantly longer than the shuttle and wing. The flowers are solitary or in lateral clusters in the upper part of the branches.

Flowering time is from April to June, often a second time from September to October.

The dark brown legumes are densely hairy and begin to ripen from August.

The number of chromosomes is 2n = 48.

Occurrence

The warmth-loving plant prefers dry, warm bushes and forests, dry grassland , embankments and quarries as a location . It indicates poor , nutrient-poor soils. It occurs in societies of the Erico-Pinion Association, also in the Pyrolo-Pinetum, in the Cytiso supini-Callunetum or in the Adonido-Brachypodietum.

The distribution area includes southern Central Europe and Southeast Europe to the Urals . In Germany only in Bavaria outside the Alps .

The Regensburg dwarf gorse is common in Austria in the Pannonian region (federal states Vienna, Lower Austria and Burgenland), rarely in Upper Austria.

The plant is occasionally planted as an ornamental wood (silk-haired goat clover).

photos

  • The stems and leaves are covered with silky hairs.

  • Butterfly flower: the calyx is covered with silky hairs, the flag glabrous.

literature

  • 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 .
  • Kremer, shrub trees . Niedernhausen, 2002. ISBN 3-576-11478-5

Individual evidence

  1. ↑ a b Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . 8th edition. Verlag Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3131-5 . Page 581.

Web links

Commons : Regensburg dwarf gorse ( Cytisus ratisbonensis )  - album with pictures, videos and audio files