Forest bluegrass

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Forest bluegrass
Forest bluegrass (Poa chaixii)

Forest bluegrass ( Poa chaixii )

Systematics
Commelinids
Order : Sweet grass (Poales)
Family : Sweet grasses (Poaceae)
Subfamily : Pooideae
Genre : Bluegrass ( Poa )
Type : Forest bluegrass
Scientific name
Poa chaixii
L.

The forest bluegrass ( Poa chaixii ) or mountain bluegrass is a type of plant from the genus of the bluegrass ( Poa ) within the sweet grass family (Poaceae). Due to the hood or canoe-shaped leaf blade, it is also called hooded grass .

description

illustration
The canoe-shaped leaf blade of the forest bluegrass (2, far right) is clearly visible in the illustration by Jacob Sturm
The following important information is missing from this article or section:
especially the generative characteristics are only marginally described or not at all
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Vegetative characteristics

The forest bluegrass grows as a perennial herbaceous plant and reaches stature heights of usually 60 to 120 (50 to 150) centimeters. The upright stalk is double-edged and flattened at the bottom.

The thinly ciliated ligule is up to 1.5 millimeters long and blunt. The alternate arranged on the stalk leaves are divided into leaf sheath and blade. The blue-green, often frosted leaf sheath is double-edged and flattened. The parallel-veined, simple, relatively rough leaf blade of the uppermost foliage leaf is 3 to 9 centimeters, the lower foliage leaves up to 25, rarely up to 45 centimeters, suddenly contracted at the upper end, hood or canoe-shaped, prickly, 5 to 10, rarely up to 14 Millimeter.

Generative characteristics

The loose, paniculate inflorescence is 10 to 15 or up to 25 centimeters long. The mostly 8 to 9 (4 to 10) millimeter long spikelet is compressed laterally and contains two to five flowers. There is no awn . The glume is ± keeled. There are two bract glumes. The lemma is glabrous and green. The glume is almost smooth.

distribution

The forest bluegrass is widespread from south-west through central and north to east and south-east Europe as well as in west Asia and the Caucasus. There are localities for Spain , France , Switzerland , Italy , Germany , Austria , Belgium , Poland , the Czech Republic , Slovakia , Slovenia , Serbia , Croatia , Bulgaria , Romania , Albania , Greece , Turkey , Syria , the European part of Russia , the Ukraine and Ciskaukasien .

Site conditions

The forest bluegrass is a light to partial shade grass .

It grows in moderately dry to fresh locations. It thrives best on moderately nutrient-rich to base-rich , low-lime , moderately acidic loam and clay soils . In Baden-Württemberg it thrives in colline to submontane mixed deciduous forests and in poor mountain meadows and mountain pastures. It rises in the Alps to altitudes of 2700 meters above sea level.

Individual evidence

  1. ↑ a b c d e f g h Poa chaixii Vill., Mountain bluegrass. In: FloraWeb.de.
  2. ^ A b Poa chaixii in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved June 26, 2019.
  3. ↑ Stefan Ruge: Sociological - ecological species groups: an introduction to forest vegetation science for students at the University of Forestry - Rottenburg . Forestry School, 2013, OCLC 878994440 .
  4. ↑ N. Böhling: "Poa". In Oskar Sebald u. a .: The fern and flowering plants of Baden-Württemberg. 1st edition, Volume 7, Pages 455-456. Verlag Eugen Ulmer, Stuttgart 1998. ISBN 3-8001-3316-4

Web links

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