Polypogon


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Polypogon

 

a genus of plants of the family Gramineae. They are annual or perennial herbs with flat leaf blades. The inflorescence is a dense, generally cylindrical, setaceous panicle of small single-flowered spikelets. The glumes, which are almost equal, are rounded on the back. The membranous lemma has five veins; it is awnless or has a very short awn. There are from eight to ten species of Polypogon (according to other data, up to 15), distributed in temperate (in the south), subtropical, and tropical regions. Three annual species are found in the southern European USSR, the Caucasus, the southern part of Western Siberia, and Middle Asia; they grow in moist, brackish meadows, on sandy riverbanks, and in saline soils. They also grow as weeds among crops. Young plants are readily eaten by cattle.

References in periodicals archive ?
ex Steud 31 Polypogon fugax Nees ex Steud 32 Saccharum spontaneum L.
En ambientes pantanosos ya sea en las orillas o en zonas que se han terrizado al interior de la cubeta, se presentan los herbazales de Polypogon elongatum y de Rumex conglomeratus y el cortaderal de Carex luridiformis.
Eichhornia crassipes, Saccharum arundinaceum, Saccharum spontaneum, Cymbopogon dactylon, Imperata cylindrical, Eleusine indica and Polypogon fugax are the dominant plant species, together constituting 80% of the cover in River habitats (Hao et al.
Y, en las olmedas y praderas meso-higrofilas, los observados fueron tan solo Asperugo probumbens, Echinochloa crus-galli, Polypogon monspeliensis y Rubia tinctorum.
Malva neglecta, Cyperus rotundus, Dactyloctenium ageyptium, Launaea nudicaulis, Ageratum conyzoides, and polypogon monspelliensis were reported from wheat fields of punjab.
y a partir de los 1400 m con Polypogon elongatus Kunth y Polypogon monspeliensis (L.
50 Polypogon monspeliensis Annual Rabbitsfoot Grass 0.
Poa infirma Kunth y Polypogon elongatus Kunth, observaciones personales) y su diversidad se incrementa a medida que se asciende en el gradiente altitudinal en la region andina.
recurva Medicago sativa -- -- (nonnative species) Melilotus indica 389 [+ or -] 582 41 [+ or -] 100 (nonnative species) Nasturtium officinale 20 [+ or -] 32 -- (nonnative species) Polygonum punctatum 184 [+ or -] 174 20 [+ or -] 50 Polypogon monospeliensis 287 [+ or -] 672 -- (nonnative species) Schoenoplectus pungens 2,210 [+ or -] 2,210 1,382 [+ or -] 1,268 Typha domingensis 4,585 [+ or -] 2,721 348 [+ or -] 357 Veronica americana 399 [+ or -] 480 - Unknown 51 [+ or -] 46 20 [+ or -] 50 Date Sediment Species September 2003 September 2003 Aster subulatus var.
Cuadro 1 Plantas nativas en las areas de pastoreo durante la epoca de lluvias Pastos Tzotzil Nombre cientifico Yisim be Sphorobolus poiretti Jovel Stipa ichu Loben t'ul Avena fatua Akan jovel Cynodon dactylon Kikil jovel Pennisetum clandestinum Ve'el tul Polypogon semiverticillata Yijil jovel Pennisetum?