Stylus rose

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Stylus rose
Rosa stylosa

Rosa stylosa

Systematics
Family : Rose family (Rosaceae)
Subfamily : Rosoideae
Genre : Roses ( pink )
Subgenus : pink
Section : Dog roses ( Caninae )
Type : Stylus rose
Scientific name
Rosa stylosa
Desv.

The stylus rose ( Rosa stylosa ), also called columnar rose or overgrown rose , is a species of rose ( Rosa ) in the subfamily Rosoideae within the rose family (Rosaceae).

description

Five-fold, radial symmetry flowers with many yellow stamens

Vegetative characteristics

The stylus rose is an upright to somewhat climbing shrub with overhanging branches that can reach heights of up to 2 meters. Its spines are strong, hooked, and broadly triangular on older trunks. The alternate leaves are five- to seven-fold pinnate and shiny dark green. The leaflets are ovate, long and gradually pointed, simply serrated without glands, loosely on the nerves underneath, hairy down on the petiole.

Generative characteristics

The flowers are almost never solitary, but up to twelve on very long, loosely petioled pedicels. The relatively small, hermaphrodite flowers are radial symmetry and five-fold with a double flower envelope . The outer sepals have glandular serrated leaflets. The five petals are (almost) white or light pink in color. The discus is conspicuously conical with a very narrow stylus canal, the styluses are glued together to form a narrow, club-shaped column that is shorter than the stamens.

The rose hip is usually oblong ovoid, glandless or provided with individual stalk glands.

The number of chromosomes is 2n = 35 or 42.

Occurrence

The stylus rose is a sub-Atlantic-sub-Mediterranean floral element . Its distribution area is mainly in Western Europe and extends from Ireland to Spain , France without the north, the eastern border is the Upper Rhine , the Swiss Jura , Lake Geneva and Savoy . Occasionally they can be found on the Upper Rhine (for example on the Isteiner Klotz ), on the edge of the Swiss Jura, on Lake Geneva and in the vicinity of Thun and Bern . It is also found in Morocco, Algeria and Tunisia.

They settled in central Europe clear dry forests and dry bushes. The stylus rose needs loose, stony loam soils . It is a character species of the Pruno-Ligustretum in Central Europe , but also occurs in other plant communities of the Berberidion and Quercion pubescentis associations.

Systematics

The first description of Rosa stylosa was by Nicaise Auguste Desvaux . Synonyms for Rosa stylosa Desv. are: Rosa arvensis subsp. stylosa (Desv.) Hook. f. , Rosa canina subsp. stylosa (Desv.) Masclans , Rosa communis subsp. stylosa (Desv.) Rouy nom. illeg., Rosa australis Puget & Ripart non Crép. , Rosa brevistyla DC. nom. illeg., Rosa calostyla Gand. , Rosa cantabrica (Crép.) Gand. , Rosa chlorantha Sauzé & Maillard , Rosa erratica Ripart , Rosa immitis Déségl. , Rosa leucochroa Desv. , Rosa lucronensis Sennen & TSElias , Rosa maluqueri Sennen , Rosa modesta Crép. , Rosa rustica Léman , Rosa stylaris Gentil , Rosa systyla Bastard , Rosa stylosa subsp. cantabrica (Crép.) Malag. , Rosa stylosa subsp. chlorantha (Sauzé & Maillard) Sennen , Rosa stylosa subsp. nevadensis (Crép.) Malag. , Rosa stylosa subsp. systyla (bastard) Nyman .

Rosa stylosa belongs to the section of dog roses ( Caninae ) from the genus of roses ( Rosa ).

literature

  • Otto Schmeil, Jost Fitschen (greeting), Siegmund Seybold: The flora of Germany and the neighboring countries. A book for identifying all wild and frequently cultivated vascular plants. 95th completely revised u. exp. Edition. Quelle & Meyer, Wiebelsheim 2011, ISBN 978-3-494-01498-2 .
  • Henning Haeupler , Thomas Muer: picture atlas of the fern and flowering plants of Germany (= the fern and flowering plants of Germany. Volume 2). 2nd, corrected and enlarged edition. Published by the Federal Agency for Nature Conservation. Ulmer, Stuttgart 2007, ISBN 978-3-8001-4990-2 .
  • Oskar Sebald, Siegmund Seybold, Georg Philippi (Hrsg.): The fern and flowering plants of Baden-Württemberg. Volume 3: Special part (Spermatophyta, subclass Rosidae): Droseraceae to Fabaceae. Eugen Ulmer, Stuttgart 1992, ISBN 3-8001-3314-8 .
  • Dietmar Aichele, Heinz-Werner Schwegler: The flowering plants of Central Europe. 2nd Edition. Volume 3, Franckh-Kosmos, Stuttgart 2000, ISBN 3-440-08048-X .

Individual evidence

  1. ↑ Rosa stylosa Desv., Verwachsengrifflige rose. In: FloraWeb.de.
  2. ↑ 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 , p. 568.
  3. ↑ a b A. Kurtto, 2009: Rosaceae (pro parte majore). Rosa stylosa In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity .

Web links

Commons : Rosa stylosa  - collection of images, videos and audio files