Carex canescens
Gray sedge ( Carex canescens )
The gray - sedge ( Carex canescens ), also called gray sedge, is a species of the genus of sedges and the family of the Sedge family ( Cyperaceae ).
Description
The gray sedge is a perennial herbaceous plant that often forms fairly dense turf and reaches stature heights of 20 to 60 cm. The erect stems is sharply triangular and rough in the upper part. He is leafy in the lower part. The leaves are flat, 2-4 mm wide, gray-green.
The gray sedge blooms from May to August. The 3-5 cm long eared inflorescence is usually four to six ( up to eleven ) seated spikelets. The lowermost spikelets is usually sold something, the others are close together. Which, with a length of about 5 mm and a width of 4 mm oblong- elliptical spikelets contain arranged fairly close 7 to 18 petals. The flowers at the base of the spikelet are male, over come the female flowers. The yellow-green husks are broadly oval with a pointed upper end and a length of 1.5 to 2 mm and a width of about 1 mm. The upright protruding tubes are longer than the glumes. They are narrowed into a very short beak and have on both sides distinctly darker colored nerves. There are two scars present.
The fruits are yellow - brown.
Their chromosome number is 2n = 52, 54 or 56
Occurrence
The range of the gray sedge includes Europe, North Asia, North America, Chile, New Guinea and Australia. In Germany it is scattered to widespread ago, but lacking in some areas.
The gray sedge grows on wet, moderately nutrient-rich acidic marsh soils in flat and raised bogs, on banks, on wet meadows and forest swamps. She is a Kennart of Caricetum fuscae ( Caricion canescenti - fuscae ). It rises to altitudes of 2,200 meters in the Alps to.
Taxonomy
The first publication of Carex canescens was in 1753 by Linnaeus in Species Plantarum. The specific epithet canescens means " becoming gray ".
Homonyms are Carex canescens Leers ( in Flora Herbornensis, 1775, p 197), Carex canescens LHBailey ( in Proceedings of the American Academy of Arts and Sciences, 22 ( 1), 1886, pp. 144), Carex canescens Huds. ( in Flora Anglica, 2nd edition, 1778, p 405). Carex canescens L. Synonyms for are: .. .. Carex cinerea Pollich, Vignea cinerea ( Pollich ) Dostal, Carex curta Gooden, Carex Hylaea VI Krecz, Carex richardii Thuill, Carex similis d' Urv, Carex skottsbergii Gand, Carex canescens var. . alpicola Wahlenb. , Carex canescens var Macloskie curta, Carex canescens var dubia LHBailey, Carex canescens var fallax Kurtz, Carex canescens var robustior Blytt ex Andersson, Carex curta var robustior ( Kük. ) B.Boivin,