Agrostis hyemalis

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Agrostis hyemalis (Walter) Britton, Sterns & Poggenb.

Poaceae

Life form: grass

Exposure: sun   4

Moisture: moderately moist

Arrangement: alternate
Leaves: decidious

Shape: linear

Division: simple

Shape: not specified
Fruit: caryopsis

134B / 229143 

Inflorescence: not specified

Petals: not specified
Habit: not specified

Growth form: not specified

Taxonomy

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

Agrostis hyemalis is a grass.

Naming

Agrostis hyemalis was already described and the name validly published by Thomas Walter. It was Nathaniel Lord Britton, Emerson Ellick Sterns and Justus Ferdinand Poggenburg, however, who reclassified it into todays valid botanical systematics in 1888.

Taxonomy

Agrostis hyemalis is a species in the genus Agrostis which contains approximately 239 to 358 species and belongs to the family of the Poaceae (Grass Family).

Characteristics

Growth

The comparatively short-lived grasses reach heights of 30 to 100 centimetres, they have a erect habit and have an upright habit. The main growing season is from spring to fall.

Leaves

Agrostis hyemalis is deciduous. The dark-green, simple leaves are alternate. They are linear with entire margins and parallel venation. The foliage is dense in summer and porous in winter.

Flowers and Fruits

Agrostis hyemalis produces green flowers from April to May.

The grasses produce only few brown caryopses from summer to autumn.

Root System

The plants form fibrous roots.

Distribution

Cultivation

The grasses prefer a sunny situation on moderately moist soil. They prefer soil with a pH between 5 and 7,5 and need a soil depth of at least 20 centimetres for good growth. They tolerate temperatures down to -35°C (USDA zone 4) and need a frost-free period of at least 19 weeks.

Tolerance of special soil conditions

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

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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