Anthoxanthum


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Anthoxanthum

 

a genus of annual and perennial grasses of the family Gramineae. The raceme is a spike-shaped, greenish brown panicle. The spikelets are single-flowered, with four husks. The two upper ones have short awns, or beards. There are two stamens. According to various sources, there are from five to twenty species, found in temperate and subtropical regions of the northern hemisphere. There are three species in the USSR. The most common is sweet vernal grass (A. odoratum), a perennial, loosely formed grain that is frequently seen in the forest zone. It grows on meadows, fields, and brushwood, less often in the forests on poor acid soils. Sweet vernal grass develops early in the spring. In pastures and in hay it is eaten as a component of feed by domesticated animals. Sweet vernal grass contains the fragrant substance coumarin.

REFERENCE

Kormovye rasteniia senokosov i pastbishch SSSR, vol. 1. Edited by I. V. Larin. Moscow-Leningrad, 1950.
References in periodicals archive ?
melagramma Pterosylis nutans Nodding Greenhood Pyrorchis nigricans Red-beaks Thelymitra arenaria Forest Sun-orchid Thelymitra aristata Great Sun-orchid Thelymitra ixioides Spotted Sun-orchid Thelymitra juncifolia Rush-leaf Sun-orchid Thelymitra media Tall Sun-orchid Thelymitra pauciflora Slender Sun-orchid Thelymitra rubra Salmon Sun-orchid Poaceae * Agrostis capillaris Brown-top Bent * Agrostis stolonifera Creeping Bent * Aira caryophyllea Silvery Hair-grass * Aira cupaniana Hair-grass * Aira elegantissima Hair-grass * Aira praecox Hair-grass * Anthoxanthum odoratum Sweet Vernal-grass Austrostipa muelleri Wiry Spear-grass Austrostipa pubinodis Tall Spear-grass Austrostipa rudis subsp.
Communis+ in 5; Dorycnium hirsutum and Anthoxanthum ovatum +, Orobanche minor r; Aetheorhiza bulbosa 2 in 7; Erica scoparia, Cistus monspeliensis and Crataegus monogyna subsp.
Los datos de Powell (1977) sobre la biologia de Conocephalus semivittatus en Nueva Zelanda senalan que la especie es muy exitosa en pastizales dominados por diversas gramineas de los generos Anthoxanthum, Bouteloua, Dactylis, Hierochloe, Lolium, Panicum y Stenotaphium; el autor atribuye el valor de adecuacion del ortoptero al grosor de los tallos de estos pastos, pues ofrecen superficies optimas para la oviposicion.
Las areas de paramo alteradas por pastoreo presentan especies nativas y exoticas altamente competitivas, principalmente pastos y plantas rasantes como Lachemilla orbiculata, Rumex acetosella, Anthoxanthum odoratum, que limitan la germinacion de otras especies propias del paramo (Vargas et al.
2007, Murcia 2010), las medias mensuales de la RSD y RSN en el matorral fueron ligeramente menores que las halladas en una comunidad sucesional de pastizal de Holcus lanatus y Anthoxanthum odoratum (Murcia & Ochoa 2008) con un periodo de regeneracion natural de 10 anos (figura 7a).
La remocion del manto de hojarasca, activa los mecanismos de regeneracion natural de las especies, permitiendo el arribo de propagulos, generando microhabitats que toleran el establecimiento y colonizacion de diversas especies como Digitalis purpurea, Phytolacca bogotensis, Senecio madagascariensis, solanum nigrum, Alonsoa meridionalis, Miconia squamulosa, Rubus bogotensis, Pteridium aquilinum, Passiflora mollisima, Cirsium vulgare, Anthoxanthum odoratum y Pennisetum clandestinum, entre las mas representativas, activando el proceso de sucesion secundaria (Martinez & Garcia, 2007).
7 Total number of species 50 92 Class Molinio-Arrhenatheretea Achillea millefolium 76 45 Centaurea jacea 52 60 Dactylis glomerata 52 23 Festuca pratensis 16 24 Lathyrus pratensis 28 49 Phleum pratense 12 8 Plantago lanceolata 56 14 Poa pratensis 36 31 Prunella vulgaris 4 13 Ranunculus acris 8 33 Trifolium pratense 28 12 Vicia cracca 56 63 Order Arrhenatheretalia Anthoxanthum odoratum 4 11 Galium album 52 45 Heracleum sibiricum 12 4 Leucanthemum vulgare 12 9 Lotus corniculatus 16 7 Order Molinietalia Angelica sylvestris .
El Lorito cadillero se ha observado alimentandose de Anthoxanthum odoratum, Acaena elongata, Pernettya spp, Azolla filiculoides, Gynoxis tolimensis, Vallea stipularis, Rumex acetosella, Myrsine sp (Verhelst et al.
Also, seasonal allergy to grass pollen was confirmed by positive skin prick test performed using a standardized extract including five grass pollen allergens: Dactylis glomerata, Anthoxanthum odoratum, Lolium perenne, Poa pratensis, and Phleum pratense (Phl p5) (Stallergenes Laboratory, Antony, France).
The relatively mesic NE zone, with highest altitudes and woody vegetation, and the SW zone (our study area), a semi-arid biome where vegetation today consists mainly of a impoverished grassland of introduced weeds including Erodium cicutarium, Hordeum murinum, Acaena argentea, Anthoxanthum odoratum, Centaurea melitensis and Conium maculatum (for more information on exotic vegetation see Matthei et al.
Grass 1:10 w/v: equal parts of Poaeeae Poa pratensis (Kentucky Bluegrass), Dactylis glomerata (Orchard Grass), Agrostis alba (Redtop), Phleum pretense (Timothy), Anthoxanthum odoratum (Sweet Vernal Grass), Cynodon dactylon (Bermuda Grass) and Cynodon dactylon (Johnson Grass).