Allium douglasii

Allium douglasii belongs to the group of bulbous and tuberous plants.

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 Allium douglasii 11.1 History 11.2 Allium douglasii 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

Allium douglasii was described in 1832 by William Jackson Hooker. The name is considered as validly published.

[edit] Taxonomy

Allium douglasii is a species in the genus Allium (onion) which contains 824 species and belongs to the family of the Alliaceae (Garlic Family).

[edit] Characteristics

[edit] Growth

The plants grow to a height of approximately 0,3 meters.They grow at a rapid rate and have a short lifespan.

[edit] Wood and Bark

[edit] Leaves

Allium douglasii is a decidious plant with simple leaves. The leaves appear at the base of the plant. They are linear with entire margins.

[edit] Flowers and Fruit

The flowers are purple. The plants bloom from May to June. The flowers are arranged in umbels.

The brown fruits are loculicidal capsules and very ornamental. They develop in spring.

[edit] Root System

[edit] Distribution

Allium douglasii is native to California.

[edit] Cultivation

Allium douglasii prefers a sunny to half shady site and can withstand temperatures down to -23,3º C. It grows best in sandy or pebbly, loamy soil, sandy clay soil that is dry to moderately moist. The plants are highly drought tolerant. They will do rahter poolry in anaerobic soils and are moderately tolerant of limy conditions.

[edit] Uses

[edit] Maintenance

[edit] Varities and Cultivars

[edit] Poisonousness

 Please read the health issues note! 

[edit] Pests and Diseases

[edit] Man and Allium douglasii

[edit] History

[edit] Allium douglasii 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 Allium douglasii in the

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• United States Department of Agriculturees:Allium douglasiifr:Allium douglasii