24 TREES AND FLOWERS OF 



(Pink) ^^^ (white) 



WILD ROSE 



WILD CHERRY 



Wild Rose (Rosa) . There are several varieties of 

 wild roses in the Park, but since they cannot be dis- 

 tinguished except by an expert it is not worth while 

 to define the differences between the species. The 

 main characteristics that will be noted by most per- 

 sons are that some have more thorns and others have a 

 larger number of leaflets per individual leaf. The 

 roses are very abundant along the stream courses, and 

 in low places where moisture conditions are favorable. 

 They come into bloom early in the season, and con- 

 tinue until late July or early August. 



Wild Cherry (Prunus) . In a few sheltered gulches, 

 the wild cherry reaches almost a tree size, but in the 

 open places where it is commonly seen, it is only a 

 bush three or four feet high. Its small white flowers 

 bloom early, and are borne in long clusters like cur- 

 rants, or the flowers of certain Eastern wild cherries. 

 The fruit is green throughout most of the season, 

 turning almost black just before frost. The taste is 

 very strong and astringent, so that this species also 

 bears the name of Rocky Mountain chokecherry. The 

 bark is red-brown, showing some tendency to crack 

 horizontally. The glossy green leaves are beset along 

 the margins with very fine, incurving sharp teeth. 



