12 FAMILIAR WILD FLOWERS. 



harrow arrives at its wiry and rooting stems it must 

 perforce suffer a check that causes it to rest awhile before 

 the obstacle is overcome. It is only fair here to observe 

 that in some old books it is called the wrest-harrow ; the 

 idea involved is, however, much the same that the tough- 

 ness of its stems wrests the harrow from its course. It 

 is also called cammock a name that we cannot at all 

 explain and wild liquorice. This latter is a book name, 

 not one in popular use. The true liquorice (Glycyrrhiza 

 f/labra) belongs to the same order ; it has pale lilac flowers. 

 It is a native of the south of Europe, but grows freely in 

 the herb-gardens at Mitcham and elsewhere in England. 



