Dwarf

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Dwarf
Dwarfs (Radiola linoides)

Dwarfs ( Radiola linoides )

Systematics
Rosids
Eurosiden I
Order : Malpighiales (Malpighiales)
Family : Flax Family (Linaceae)
Genre : Radiola
Type : Dwarf
Scientific name
Radiola linoides
Roth

The dwarfs ( Radiola linoides ), also dwarf flax called, is a tiny flowering plant from the family of Flax Family . The name is not a diminutive , but refers to the close relationship with the flax ( Linum ).

description

The dwarf is only 1 to 10 cm tall. Its thin and bare stems are forked. The only 3 to 5 mm long, ovate to lanceolate, seated leaves are opposite. The four-fold flowers are in clusters (dichasias) at the end of the branches. The sepals are two- to three-toothed, the white-colored petals are as long as the fruit and are about 1 mm long. The dwarf blooms between July and August.

The number of chromosomes is 2n = 18.

Occurrence

Lush population of dwarfs in the Südheide Nature Park
Detail of the flowers

The distribution of Radiola linoides extends across Europe to the montane regions of Africa. The species is rarely found in Germany. By eutrophication stocks go back increasingly soil, intensive agriculture, elimination of small-scale wetland sites and coastal protection and therefore lack of coastal dynamics. It is classified as critically endangered on the red list of endangered vascular plants in Germany. In Mecklenburg-Western Pomerania it is threatened with extinction.

The dwarf predominantly populates short-lived muddy soil pioneer corridors and can be found in moist, temporarily flooded fields, on the banks of periodically dry waters and in temporarily disturbed, damp ruderal areas. The plant is considered in Central Europe as Kennart the Association Ranunculo-Radioletum linoidis and also has a major presence in the association Cicendietum filiformis. So he is a character species of the Nanocyperion association.

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 .
  • Franz Fukarek , Heinz executioner : Flora of Mecklenburg-Western Pomerania. Fern and flowering plants . Weissdorn, Jena 2006, ISBN 3-936055-07-6 .
  • Henning Haeupler, Thomas Muer: picture atlas of the fern and flowering plants of Germany . Ed .: Federal Agency for Nature Conservation (=  The fern and flowering plants of Germany . Volume 2 ). Eugen Ulmer, Stuttgart (Hohenheim) 2000, ISBN 3-8001-3364-4 .

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 632.

Web links

Commons : Zwerglein ( Radiola linoides )  - Album with pictures, videos and audio files
Wiktionary: Zwerglein  - explanations of meanings, word origins , synonyms, translations