YELLOWSTONE NATIONAL PARK 23 



(yellow) (white) 



SHRUB CINQUEFOIL SERVICE-BERRY 



Shrub Cinquefoil (Dasiophora) . The shrub 

 cinquefoil is fairly abundant at the lower levels on drier 

 ground ; it seems to thrive especially well on the lime- 

 stone soil near Mammoth Hot Springs. It is a stiff, 

 rather freely branching shrub, reaching a height of 

 about three feet, although in very dry locations, as 

 on the hot springs terraces, it may grow only a few 

 inches high. The flowers are bright yellow, and con- 

 tinue in bloom throughout the season. The leaves are 

 compound, the narrow, dark-green leaflets standing 

 out like the fingers on a hand. All green parts of the 

 plant are covered with a coat of silky hairs. 



Service-Berry (Amelanchier) . This is the West- 

 ern representative of the bush known in the East also 

 as shad-bush or Juneberry. It blossoms early, so that 

 visitors during the main travel season are not likely 

 to see it; however, during June and into early July 

 its beautiful clusters of flowers, each with four long, 

 white petals, make the shrub a conspicuous object on 

 the open hillsides and at the margins of some of the 

 forests. It is capable of a growth of twelve feet, but 

 conditions are usually not sufficiently favorable to al- 

 low a height of more than three or four. The bark is 

 smooth and gray, and the oval leaves, from one and 

 one-half to two inches long, are sharply toothed. 



