Star hair rock florets

Star hair rock florets
Star-haired rockflowers ( Draba stellata )
Systematics
Eurosiden II Order : Cruciferous (Brassicales) Family : Cruciferous vegetables (Brassicaceae) Tribe : Arabideae Genre : Rock flowers ( Draba ) Type : Star hair rock florets
Scientific name
Draba stellata
Jacq.

The star hair Whitlowgrass ( Draba stellata ) is a plant from the genus of Felsenblümchen ( Draba ) within the family of Brassicaceae (Brassicaceae).

description

Vegetative characteristics

The star hair rock flower is a perennial herbaceous plant and reaches heights of 3 to 10 centimeters. The leaf blades of the basal leaves are hairy. The stem has no or up to three leaves, which are usually only covered with star hair and eyelashes at the bottom.

Generative characteristics

The flowering period extends from June to July. The hermaphrodite flowers are fourfold. The white petals are 3 to 6 millimeters wide and 4.5 to 8 millimeters long.

The bald or rarely weakly eyelashed pods are 4 to 10 millimeters long and 1.7 to 3.8 millimeters wide.

There is diploidy with a chromosome number of 2n = 16.

Occurrence

The star-haired rock flower is an Austrian endemic of the north-eastern Limestone Alps and the Lower Tauern. It occurs scattered in Upper Austria , Lower Austria and Styria .

This limestone plant thrives mainly in rock corridors and snow-soil communities in the alpine altitude . It has its optimum in the Alps in the plant communities of the Potentillenion caulescentis.

literature

• Manfred A. Fischer , Wolfgang Adler, Karl Oswald: Excursion flora for Austria, Liechtenstein and South Tyrol. 2nd, improved and enlarged edition. State of Upper Austria, Biology Center of the Upper Austrian State Museums, Linz 2005, ISBN 3-85474-140-5 .

Individual evidence

1. ↑ Jaakko Jalas, Juha Suominen: Atlas florae europaeae. Volume 11 Cruciferae (Ricotia to Raphanus). Helsinki 1996, ISBN 951-9108-11-4 . Draba stellata on pages 92–93.
2. ↑ David Aeschimann et al .: Flora Alpina. Volume 1 and 2. Bern, Stuttgart, Vienna Haupt-Verlag, 2004, ISBN 3-258-06600-0 .

Web links

Commons : Star-haired rock florets ( Draba stellata )  - album with pictures, videos and audio files