Arnica chamissonis

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Arnica chamissonis Less.

Asteraceae

Life form: perennial

Exposure: sun   2

Moisture: moderately moist bis Moisture: moist

Soil: sandy loam - Soil: gritty loam

Arrangement: opposite
Leaves: decidious

Shape: lanceolate

Division: simple

Shape: many-stellate
Fruit: achene

3A / f8da21 

Inflorescence: solitary

Petals: not specified
Habit: not specified

Growth form: not specified

Taxonomy

Divisio:
Magnoliophyta
Subdivisio:
Magnoliophytina
Classis:
Rosopsida
Subclassis:
Asteridae
Superordo:
Asteranae
Ordo:
Asterales

Arnica chamissonis is a perennial.

Naming

Arnica chamissonis was described by Christian Friedrich Lessing in 1831. The name is considered as validly published.

Taxonomy

Arnica chamissonis is a species in the genus Arnica which contains approximately 37 to 52 species and belongs to the family of the Asteraceae (Aster Family). The type species of the genus is Arnica montana.

Characteristics

Arnica chamissonis - flowers

Growth

The perennials are comparatively short-lived and reach heights of 20 to 80 centimetres.

Leaves

Arnica chamissonis is deciduous. The green, simple leaves are opposite. They are lanceolate, entire and sessile.

Flowers and Fruits

Arnica chamissonis produces solitary yellow many-stellate flowers from May to July.

The perennials produce brown achenes in summer.

Root System

Distribution

Arnica chamissonis is native to Alaska, British Columbia, the Northwest of the US, California, the Rocky Mountains and the Southwest of the US.

Cultivation

The perennials prefer a sunny situation on fresh to moist soil. They prefer sandy-loamy or gritty-loamy soil with a pH between 6 and 7,2. The plants need a soil depth of at least 20 centimetres for good growth. They tolerate temperatures down to -45°C (USDA zone 2).

Classification after Prof. Dr. Sieber

  • open areas
  • rockeries
  • woodland borders (soil usually rich in humus)

Tolerance of special soil conditions

  • low: calcareous soil

Uses

The recommended planting distance is 40 centimetres, the perennials are best planted in groups of 3 to 10.

Maintenance and Propagation

Cultivars

Pests and Diseases

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.

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