Draba grayana

Draba grayana is a perennial.

Contents 1 Naming 2 Taxonomy 3 Characteristics 3.1 Growth 3.2 Wood and Bark 3.3 Leaves 3.4 Flowers and Fruit 3.5 Root System 4 Distribution 5 Cultivation 6 Uses 7 Maintenance 8 Varities and Cultivars 9 Poisonousness 10 Pests and Diseases 11 Man and Draba grayana 11.1 History 11.2 Draba grayana in art 11.3 Symbolism 11.4 Superstition 12 See also 13 References 13.1 Literature 13.2 Footnotes 14 Non-commercial Links

[edit] Naming

Draba grayana was already described and the name validly published by Per Axel Rydberg. It was not until 1941, however, that Charles Leo Hitchcock reclassified it into todays valid botanical systematics.

[edit] Taxonomy

Draba grayana is a species in the genus Draba (whitlow grass) which contains 300 species and belongs to the family of the Brassicaceae (Mustard Family).

[edit] Characteristics

[edit] Growth

The perennials grow to a height of approximately 0,05 meters and develop as mats.

[edit] Wood and Bark

[edit] Leaves

Draba grayana is an evergreen plant with simple leaves. The leaves are arranged in rosettes. They are linear with entire margins.

[edit] Flowers and Fruit

The flowers are cross-shaped and yellow. The plants bloom from July to August. The flowers are arranged in racemes.

The fruits are [silique]]s.

[edit] Root System

[edit] Distribution

Draba grayana is native to Colorado.

[edit] Cultivation

Draba grayana prefers a sunny site. It grows best in sandy-gritty soil that is dry.

[edit] Uses

[edit] Maintenance

[edit] Varities and Cultivars

[edit] Poisonousness

 Please read the health issues note! 

[edit] Pests and Diseases

[edit] Man and Draba grayana

[edit] History

[edit] Draba grayana in art

[edit] Symbolism

[edit] Superstition

[edit] See also

[edit] References

[edit] Literature

• Walter Erhardt, Erich Götz, Nils Bödeker, Siegmund Seybold: Der große Zander. Eugen Ulmer KG, Stuttgart 2008, ISBN 978-3-8001-5406-7. (Ger.)
• Christoper Brickell (Editor-in-chief): RHS A-Z Encyclopedia of Garden Plants. Third edition. Dorling Kindersley, London 2003, ISBN 0-7513-3738-2.
• efloras.org

[edit] Footnotes

[edit] Non-commercial Links

More pictures of Draba grayana in the

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• United States Department of Agriculturees:Draba grayanafr:Draba grayana