PURPLE FLOWERS 



73 



purple : common in shady woods, flowering in spring and early 

 summer. 



160. Self-heal, Prunella vulgaris, Dead-nettle family. A very 

 common plant of meadows and pastures, flowering in late 



157. Butter wort. 



158. Wild Thyme. 



summer : the stem is less than 1 ft. high, and has pairs of blunt, 

 ovate leaves : the flowers are crowded into terminal heads of a 



159. Ground-Ivy. 



160. Self-heal. 



dull purple colour : occasionally white-flowered plants are found : 

 formerly a highly prized "simple." 



161. Betony, Stachys Betonica, Dead-nettle family. A plant 

 of the woods and hedges : it may be most readily recognised by 

 its paired, stalked leaves, which are oblong, with the base heart- 



