Heterotheca villosa

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Heterotheca villosa (Pursh) Shinners

Asteraceae

Life form: perennial
Usage: ornamental plant

Exposure: sun   5

Moisture: dry bis Moisture: moderately moist

Soil: gritty-sandy - Soil: gritty loam

Arrangement: alternate
Leaves: decidious

Shape: oblanceolate

Division: simple

Shape: many-stellate
Fruit: achene

3A / f8da21 

Inflorescence: corymb

Petals: not specified
Habit: not specified

Growth form: stemless

Taxonomy

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

Heterotheca villosa, commonly known as hairy goldenaster, is a perennial.

Naming

Heterotheca villosa was already described and the name validly published by Frederick Traugott Pursh. It was Lloyd Herbert Shinners, however, who reclassified it into todays valid botanical systematics in 1951.

Taxonomy

Heterotheca villosa is a species in the genus Heterotheca which contains approximately 45 to 51 species and belongs to the family of the Asteraceae (Aster Family).

Characteristics

Heterotheca villosa - flowers

Growth

The perennials reach heights of 5 to 100 centimetres, the main growing season is in spring and summer. They have a erect habit and are comparatively short-lived.

Leaves

Heterotheca villosa is deciduous. The mid-green, simple leaves are alternate. They are oblanceolate, entire and petiolate. The foliage is porous.

Flowers and Fruits

Heterotheca villosa produces corymbs of showy, yellow many-stellate flowers from July to October.

The perennials produce brown achenes from summer to autumn.

Root System

Distribution

Heterotheca villosa is native to western Canada, the Northwest of the US, the Rocky Mountains, the northern Prairie States of the US, the central Northeast of the US, California, the Southwest of the US and the southern Prairie States of the US.

Cultivation

The perennials prefer a sunny situation on dry to moderately moist soil. The substrate should be gritty-sandy or gritty-loamy and comparatively poor with a pH between 6 and 7,5. The plants need a soil depth of at least 36 centimetres for good growth. They tolerate temperatures down to -29°C (USDA zone 5) and need a frost-free period of at least 19 weeks.

Tolerance of special soil conditions

  • none: anaerobic soil
  • low: soil salinity
  • medium: drought, calcareous soil

Uses

Suited for rockeries.

Maintenance and Propagation

Propagate by sowing.

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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