GRASS-LAND WEEDS 179 



($) Coarse Growing Plants that Deteriorate the Quality of 

 the Pasture or Meadow. 



Cat's ear (Hypochceris radicata). 



Chervil (Anthriscus sylvestris). 



Dog daisy (Chrysanthemum leucanthemum). 



Docks (Rumex obtusifolius, etc.). 



Hogweed (Heracleum sphondylium). 



Nettles (Urtica dioica and U. urens}. 



Rest-harrow (Ononis repens). 



Scabious (Scabiosa arvensis}. 



Thistles (Cirsiitm arvense, C. lanceolatum, Cardnns nutans). 



Wild carrot (Daucus carota). 



Woodwax (Genista tinctoria}. 



Yarrow (Achillea millefolium). 



A few weeds in this class, notably thistles, nettles, and 

 hogweed, have a certain nutritive value and are turned to 

 account when cut down, and some classes of stock will eat 

 them when dried. 



(c) Grasses and Plants of Low Feeding Value. 



False brorrie (Brachypodium sylvaticum and B. pinnatum). 



Soft brome (Bromus mollis). 



Quaker grass (Briza media). 



Rush (Juncus spp.}. 



Sedge (Carex spp.}. 



Quaker grass is usually a sign of very poor land and can 

 be eradicated by manurial improvement (Fig. 40). The other 

 two grasses, when circumstances are favourable, tend to over- 

 run the pastures to the exclusion of species of greater feeding 

 value. 



(d) Parasitic Weeds. 



Dodder (Cuscuta spp.}. 



Eyebright (Euphrasia otficinalis). 



Lousewort (Pedicularis palustris). 



Yellow rattle (Rhinanthus crista-galli). 



See Chapter VI. 



B. PLANTS THAT ARE CONSIDERED TO POSSESS A CERTAIN 

 FEEDING VALUE BUT ARE REGARDED AS WEEDS IF 

 THEY ARE PRESENT IN TOO GREAT QUANTITY OR 

 GROW TOO LUXURIANTLY. 



Bent grass (Agrostis spp.}. 



Couch-grass (Agropyron repens}. 



Dandelion (Taraxacum vulgar e}. 



Hardhead (Centaurea nigra). 



Sheep's sorrel (Rumex acetosella}. 



Silverweed (Potentilla anserina). 



Sorrel (Rumex acetosa). 



Yorkshire fog (Holcus lanatus). 



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