Aristida arizonica

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Aristida arizonica Vasey

Poaceae

Life form: grass

Exposure: sun   4

Arrangement: alternate
Leaves: decidious

Shape: linear

Division: simple

Shape: not specified
Fruit: caryopsis

3A / f8da21 

Inflorescence: panicle

Petals: not specified
Habit: not specified

Growth form: not specified

Taxonomy

Divisio:
Magnoliophyta
Subdivisio:
Magnoliophytina
Classis:
Liliopsida
Subclassis:
Commelinidae
Superordo:
Poanae
Ordo:
Poales

Aristida arizonica is a grass.

Naming

Aristida arizonica was described by George Vasey in 1886. The name is considered as validly published.

Taxonomy

Aristida arizonica is a species in the genus Aristida which contains approximately 302 to 338 species and belongs to the family of the Poaceae (Grass Family).

Characteristics

Growth

The comparatively fast-growing grasses reach heights of 30 to 100 centimetres, they have a erect habit and have an upright habit. The main growing season is in summer.

Leaves

Aristida arizonica is deciduous. The dark-green, simple leaves are alternate. They are linear with entire margins and parallel venation. The foliage is porous.

Flowers and Fruits

Aristida arizonica produces panicles of yellow flowers from July to August.

The grasses produce brown caryopses in summer.

Root System

Distribution

Aristida arizonica is native to the Northwest of the US, the Southwest of the US, the southern Prairie States of the US and Mexico.

Cultivation

The grasses prefer a sunny situation. The substrate should be comparatively poor with a pH between 5,5 and 7,5. The plants need a soil depth of at least 30 centimetres for good growth. They tolerate temperatures down to -35°C (USDA zone 4) and need a frost-free period of at least 23 weeks.

Tolerance of special soil conditions

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

Uses

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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