Wedge-leaved rose

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Wedge-leaved rose
Herbarium evidence of Rosa elliptica var. Andresiana, Naturalis

Herbarium specimen of Rosa elliptica var. Andresiana , Naturalis

Systematics
Family : Rose family (Rosaceae)
Subfamily : Rosoideae
Genre : Roses ( pink )
Subgenus : pink
Section : Dog roses ( Caninae )
Type : Wedge-leaved rose
Scientific name
Rosa elliptica
exchange

The wedge-leaved rose ( Rosa elliptica ), incorrectly also called small-leaved rose , is a species of plant from the genus roses ( Rosa ) within the rose family (Rosaceae). The natural range includes Central Europe .

description

The wedge-leaved rose grows as a stocky, dense shrub that reaches heights of up to 1.2 m. The branches have spines .

The flowering period extends from June to August. The hermaphrodite flowers are radially symmetrical and five-fold. The sepals are upright and durable after the anthesis . The five free petals are light pink in color. The diameter of the stylus channel is 1.2 to 2 millimeters. The scar heads are broad and woolly.

The rose hip is glandless. (Note: taxonomically critical are the biotypes that tend to Rosa rubiginosa , mainly occurring in south-east Mecklenburg, with pedunculate flower stalks, which were previously referred to as Rosa elliptica subsp. Subeglanteria .)

The chromosome number is 2n = 35, in the subspecies subsp. inodora 35 or 42.

Occurrence

The wedge-leaved rose is a pre-alpine-temperate continental floral element . The Central European distribution area extends from Burgundy over the Alps , southern Germany and Bohemia to the Carpathian Mountains . In contrast to Rosa agrestis , the area of ​​which is mainly in southern and western Europe, the wedge-leaved rose seems to be found mainly only in Central Europe. In the South and West Switzerland is hard to find them, likewise in Lower Austria and in Styria . In the Alps it occurs only at the southern foot and in the valleys; possibly also in South Tyrol .

It inhabits light dry forests and dry bushes and is absent in Central Europe in the lowlands; otherwise it occurs only sporadically in summer-dry areas with calcareous rock , i.e. in the east of the area. The wedge-leaved rose needs rather shallow , loose, stony, calcareous, dry loam or clay soils .

Systematics

Rosa elliptica belongs to the Caninae section from the subgenus Rosa in the genus Rosa .

The first publication of Rosa elliptica was done by Ignaz Friedrich Tausch . A synonym for Rosa elliptica exchange is Rosa graveolens Gren.

The following subspecies have been described:

  • Rosa elliptica exchange subsp. elliptica whose sepals are long pinnate, remain erect as a tuft after flowering and have no glands on their back.
  • Rosa elliptica subsp. inodora (Fr.) Schwertschl. whose sepals like subsp. elliptica are fluttered after the anthesis and fall off until the fruit is ripe. The growth of this subspecies is loose, and the spines on the flowering branches may also be missing.

According to Euro + Med, however, Rosa inodora 1814 is the older valid name compared to Rosa elliptica 1819. So if both clans are kept as separate subspecies, the two subspecies are known as Rosa inodora subsp. elliptica and Rosa inodora subsp. to name inodora .

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. Franckh Kosmos Verlag, 2nd revised edition 1994, 2000, Volume 2, ISBN 3-440-08048-X .

Individual evidence

  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 568.
  2. ^ A. Kurtto (2009): Rosaceae (pro parte majore). - In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity. Datasheet Rosa In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity.

Web links

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