holcus造句

• Cattle do not eat the rare plant and may in fact help clear the land of velvetgrass ( " Holcus lanatus " ).
• It forms a major component of the British NVC community MG9-" Holcus lanatus " to " Deschampsia cespitosa " mesotrophic grasslands.
• He contributed to the British National Vegetation Classification and was the first person to describe the British NVC community MG10 ( Juncus effusus-Holcus lanatus rush pasture plant community ).
• "' British NVC community MG10 ( Holcus lanatus-Juncus effusus rush-pasture ) "'is one of the communities in the British National Vegetation Classification system.
• Tussocky ( Thrift ) ( Holcus / Armeria ) communities occur mainly on the western side, and some patches of bracken ( " Pteridium aquilinum " ) on the eastern side.
• On shallow slopes, this gives way to a neutral grassland characterised by false oat-grass, " Arrhenatherum elatius ", and Yorkshire fog, " Holcus lanatus ".
• They are polyphagous, feeding on the sap of various species of herbaceous plants, mainly Juncus ( Juncaceae sp . ), Carex ( Cyperaceae sp . ), Holcus ( Poaceae sp . ) and Fabaceae species.
• Scrub areas are composed of birch, hawthorn Crataegus monogyna, gorse " Ulex europaeus ", blackthorn " Prunus spinosa " bramble " Rubus fruticosus " and creeping soft-grass " Holcus mollis ".
• Also elk grazing had a positive impact on native grassland species abundance and diversity but also seemed to increase the richness and abundance of some exotic taxa while reducing Holcus lanatus a highly invasive exotic grass which is a major problem in mesic perennial grasslands.
• The grassland is poorly drained and is dominated by tufted hair-grass " Deschampsia caespitosa ", Yorkshire fog " Holcus lanatus ", red fescue " Festuca rubra " and great burnet " Sanguisorba officinalis ".
• On the heavily-grazed hill top is an acid grassland vegetation, in which Yorkshire fog, " Holcus lanatus ", common bent, " Agrostis capillaris ", and red fescue, " Festuca rubra ", are the predominant grasses.
• These include velvet grass ( " Holcus lanatus " ), tall fescue ( " Festuca arundinacea " ), and Harding grass ( " Phalaris aquatica " ); the impact of these species can be somewhat ameliorated by well-planned livestock grazing, which can reduce these species'cover and allow native species to persist.
• The San Mateo County populations occurs in small, scattered native grassland sites on Montara Mountain and are currently threatened with extinction by the encroaching invasive European weed grasses like " Brachypodium ", " Vulpia ", " Holcus " and two species of " Briza " or rattlesnake grass, which crowd out the plants.
• The meadow supports a diverse level of flora with over 150 recorded species, including various grass species such as common bent ( " Agrostis capillaris " ), red fescue ( " Festuca rubra " ), Yorkshire fog ( " Holcus lanatus " ) and tufted hair-grass ( " Deschampsia cespitosa " ).
• By the 1980s the eastern side of the island had become overgrown by rhododendrons " ( Rhododendron ponticum ) " which had spread from a few specimens planted in the garden of Millcombe House in western gorse ( " Ulex gallii " ), or semi-improved acidic grassland in which Yorkshire fog ( " Holcus lanatus " ) is abundant.