Achillea ptarmica

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Achillea ptarmica L.

Asteraceae

Life form: perennial
Usage: economic plant

Exposure: sun   5

Moisture: moderately moist

Soil: loam - Soil: loamy clay

Arrangement: alternate
Leaves: decidious

Shape: lanceolate

Division: simple

Shape: many-stellate
Fruit: achene

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Inflorescence: raceme

Petals: not specified
Habit: not specified

Growth form: erect

Taxonomy

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

Achillea ptarmica, commonly known as sneezewort, is a perennial.

Naming

Achillea ptarmica was described by Carl Linnaeus in 1753. The name is considered as validly published.

Taxonomy

Achillea ptarmica is a species in the genus Achillea which contains approximately 171 to 348 species and belongs to the family of the Asteraceae (Aster Family). The type species of the genus is Achillea millefolium.

Characteristics

Growth

The perennials have an upright growth and reach heights of 30 to 90 centimetres.

Leaves

Achillea ptarmica is deciduous. The green, simple leaves are alternate. They are lanceolate with denticulate margins.

Flowers and Fruits

Achillea ptarmica produces racemes of white many-stellate flowers from July to September.

The perennials produce achenes.

Root System

Distribution

Achillea ptarmica is native to the whole of Europe and is naturalized in North America.

Cultivation

The perennials prefer a sunny situation on moderately moist soil. The substrate should be loamy or loamy clay soil with a pH between 6,5 and 7,5. They tolerate temperatures down to -29°C (USDA zone 5).

Classification after Prof. Dr. Sieber

  • open areas

Uses

The recommended planting distance is 30 to 40 centimetres, the perennials are best planted in groups of 5 to 10. Suited for cottage gardens, as well as suited as cut flowers and as bee pasture.

Maintenance and Propagation

  • Divide every few years.
  • water during dry periods.

Propagate by sowing or by division.

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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