Stipa


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Stipa

 

a genus of plants of the family Gramineae. They are primarily perennial herbs with narrow linear and bristle-like blades, which are generally folded lengthwise. The solitary spike-lets are not numerous and are gathered in lax or, less frequently, compressed panicles. There are two lemmas; the inferior flowering glume is hard, with a long awn. There are approximately 300 species, distributed in the temperate, subtropical, and tropical zones of both hemispheres. Many species form the basic elements of the grass cover of steppes, prairies, and pampas; they also grow in meadows that have become steppe and on dry slopes and cliffs. In the USSR there are approximately 80 species, primarily in the central and southern regions of the European USSR, the Caucasus, Middle Asia, and Southern Siberia. Some of the most common species are Stipa lessingiana, feather grass (S. pennata), S. pulcherrima, S. zalesskii, and S. capillata. Many are valuable fodder plants, especially S. lessingiana. Esparto grass (S. tenacissima), which grows in the Mediterranean Region, provides raw material for the paper industry.

REFERENCE

Kormovye rasteniia senokosov i pastbishch SSSR, vol. 1. Edited by I. V. Larin. Moscow-Leningrad, 1950.

T. V. EGOROVA

References in periodicals archive ?
Previous studies have reported the structural species as Stipa grandi and the dominant grasses as Stipa grandi, Stipa krylovii, and Cleistogenes squarrosa [22-24].
Stipa gigantea is the graceful |giant in the grass world, achieving heights of more than 2.
Cumulative respiration from soils amended with individual residues was significantly greater with shoots than with roots and significantly greater with barley than with Stipa residues (Fig.
pungens, Poa angustifolia, Stipa tirsa, Trinia glauca.
Stipa hohenackeriana: This perennial grass is of utmost importance in arid and semi-arid regions in view of livestock feeding.
La vegetacion presente tanto en la zona de Illpa como en Quimsachata estuvo conformado en un alto porcentaje de gramineas (> 60 %) de los generos Festuca, Calamagrostis, Muhlenbergia, Poa, Aristida, Stipa y Bouteloua, entre otros (Figura 2).
El proyecto eolico Bii Nee Stipa II, puesto en marcha en el estado de Oaxaca por empresas y organismos financieros internacionales, fue denunciado el jueves 21 ante el Parlamento Europeo por no tomar en cuenta a las comunidades locales y beneficiar unicamente a un Krupo de poderosas trasnacionales.
strigossus, Stipa ichu, Pappophorum caespitosum, entre otras.
No existen para las areas de estudio trabajos sobre la determinacion de la receptividad de los pastizales naturales, a excepcion de la que puede calcularse para la Reserva La Payunia en funcion de la estimacion de la Productividad Primaria Neta Aerea (PPNA) solo de las tres gramineas principales (Panicum urvilleanum Kunth, Stipa spp.
Si bien en la diagnosis original de Stipa brachyglumis se afirma que el cuello de las vainas es glabro, en el holotipo de la especie se ha podido observar que en esa zona generalmente existe una hilera de pelitos cortos.
Many ornamental grasses, including stipa tenuissima and sedges (carex), can be dotted at ground level in gravel or slate to provide texture.