GRASS-LAND WEEDS 179 



(6) 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 obtttsifoliits, etc.). 



Hogweed (Heracleum sphondyliitm). 



Nettles (Urtica dioica and U. urens). 



Rest-harrow (Ononis repens). 



Scabious (Scabiosa arvensis). 



Thistles (Cirsium arvense, C. lanceolatum, Cardiitis niitans). 



Wild carrot (Daucits 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. 



(<:) Grasses and Plants of Low Feeding Value. 



False brome (Brachy podium sylvaticum and B. pinnatum). 



Soft brome (Bromus mollis). 



Quaker grass (Briza media). 



Rush (jfvnetu 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 officinalis). 



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 vulgare). 



Hardhead (Ccntaurea nigra). 



Sheep's sorrel (Rumex acetosella). 



Silverweed (Potentilta anserina). 



Sorrel (Rumex acttosa). 



Yorkshire fog (Holcus lanatus). 



12* 



