Grove rockflowers

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Grove rockflowers
Grove floret (Draba nemorosa), illustration

Grove floret ( Draba nemorosa ), illustration

Systematics
Eurosiden II
Order : Cruciferous (Brassicales)
Family : Cruciferous vegetables (Brassicaceae)
Tribe : Arabideae
Genre : Rock flowers ( Draba )
Type : Grove rockflowers
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.

Grove rockflowers ( Draba nemorosa )

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

  1. ↑ 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

Commons : Hain-Felsenblümchen ( Draba nemorosa )  - Album with pictures, videos and audio files