Grove rockflowers
Grove rockflowers | ||||||||||||
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Grove floret ( Draba nemorosa ), illustration |
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Systematics | ||||||||||||
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Scientific name | ||||||||||||
Draba nemorosa | ||||||||||||
L. |
The Hain rock flower ( Draba nemorosa ) is an annual representative of the rock flower ( Draba ).
features
The grove rockflower is an annual plant ( therophyte ). It reaches heights of growth of 10 to 40 cm. The flower stalks are also leafy above the base, the lower stem area is hairy. The leaves are broadly ovate, blunt-toothed, soft and rough with star hair.
The petals are white, when fading white, 2 to 4 mm long and edged. Flowering time is May and June, pollination is carried out by insects or self-pollination .
The pod fruit is 3.5 to 7 mm long with a 6 to 10 mm long stem, horizontally protruding, elliptical, with short hairs or glabrous.
The species has chromosome number 2n = 16.
Occurrence
The Hain rock flower is native to Eastern Europe, in Central Europe it is an introduced to naturalized neophyte . In the Pannonian region of Austria it could also be indigenous. It is common in South Tyrol. In Austria it is rare or scattered, in Salzburg, Upper Austria and Vorarlberg it is absent. In Germany it occurs in Bavaria and Brandenburg.
It grows in patchy semi-arid grasslands, dry meadows, on embankments, in ruderal areas, less often on the edges of forests or in central alpine pine forests. It occurs mainly on sandy soils of the colline to montane altitude range . It is a Sedo-Scleranthetea class of character, but also occurs in societies of the Mesobromion Association.
literature
- Siegmund Seybold (Ed.): Schmeil-Fitschen interactive. (CD-ROM). Quelle & Meyer, Wiebelsheim 2001/2002, ISBN 3-494-01327-6 .
- 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
- ↑ a b Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . 8th edition. Stuttgart, Verlag Eugen Ulmer, 2001. ISBN 3-8001-3131-5 . Page 457.
Web links
- Grove rockflowers. In: FloraWeb.de.
- Distribution map for Germany. In: Floraweb .
- Draba nemorosa L. In: Info Flora , the national data and information center for Swiss flora . Retrieved October 27, 2015.
- Distribution in the northern hemisphere according to: Eric Hultén , Magnus Fries: Atlas of North European vascular plants 1986, ISBN 3-87429-263-0
- Thomas Meyer: Data sheet with identification key and photos at Flora-de: Flora von Deutschland (old name of the website: Flowers in Swabia )