Isolepis setacea
Bristly shed eaves ( Isolepis setacea )
The Bristly Bristly shed eaves or bog bulrush ( Isolepis setacea ) is a plant from the family of the Sedge family ( Cyperaceae ). It is widespread in the Old World. It is sometimes used as an ornamental plant.
Description
The Bristly shed ledges grows in clumps or dense mats as an annual or perennial herbaceous plant only a few years and reaches heights of growth of usually 2 to 10 (rarely up to 30 ) centimeters. It forms creeping rhizomes. The straight or slightly curved stem is terete, with a diameter of only 0.3 to 0.5 millimeters. The laminae are flat or rinnig at a width of only up to 0.5 mm and a length of up to 9 inches.
The up to 3 centimeters long husk of the inflorescence stalk sets the fort, stands upright and can be later slightly curved. The seemingly pendant, little head shaped inflorescence contains one to four (up to a maximum of ten ) spikelets. Spikelets are ovate at a length of 2 to 3 mm, and one to two millimeters and containing 10 to 40 flowers. The glumes are glabrous, oblong- ovate, 1.3 to 2.1 mm long and 0.6 to 1.2 mm wide, brownish or purplish, with about seven nerves and a broad green keel. The flower contains one or two stamens and three stigmas.
The compressed - triangular nut has convex sides, is 0.5 to 1.2 millimeters long and wears a short spike tip. It is alongside ribbed and striped delicate cross; their color is gray-brown to reddish brown.
The flowering period extends from July to October. The chromosome number is 2n = 28
Occurrence
The distribution of bristly scales ledges comprises Europe (except in the extreme south and north ), Africa, West and Central Asia with Siberia, India, China, as well as Australia. Introduced it also happens in North America.
The Bristly shed eaves liked grows as a pioneer plant on wet, moderately acidic sandy or peaty soils. They are found on wet roads, in marshes, lake shores and ditches. She is a Kennart of Stellario uliginosae - Scirpetum Setacei in sublattice Juncenion bufonii the Association Nanocyperion and rises in the Alps up to altitudes of 1200 meters.
Taxonomy
This species was first published in 1753 under the name Scirpus setaceus by Carl Linnaeus in Species Plantarum, 1, p 49. Robert Brown Exposed 1810 in Prodromus Novae Florae Hollandiae, p 221 with her as the type species of the genus Isolepis on. Other synonyms for Isolepis setacea (L.) R.Br. are: Isolepis gracillima ( Kohts ) Nyman, Isolepis lenticularis Nees ex Boeck, Isolepis pleurocarpa Hochst.. ex CBClarke, Isolepis Saviana link Isolepis setacea var aberdarica RWHaines & Lye, Mariscus setaceus (L. ) Moench, Schoenoplectus setaceus (L.) Palla, Scirpus Gracillimus Kohts. It was formerly placed in the larger genus of ledges ( Scirpus ), but is now usually assigned to the genus Isolepis.