8 FLORA OF MOUNT RAINIER NATIONAL PARK. 



The Clintonia has three radical elliptical parallel- veined leaves and a 

 single terminal flower. Its fruit consists of a hlue berry. There are 

 three species of the false solomon seal in this region — two species of 

 twisted stalk and the ovate trillium — all of which belong to the 

 lily-of-the-valley family. 



The Oregon wood sorrel, Oxalis oregona, is extremely abundant 

 and grows with those just mentioned. It has white or pinkish-white 

 flowers and leaves of three obcordatc leaflets resembling clover. The 

 juice of this plant is extremely sour. Visitors frequently refer to it 

 as that "cloverlike plant in the woods." A bishop's cap, TiareUa 

 trifoliata, has a delicate raceme of small white flowers and pubescent 



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Fig. 5. — Forest anemone (Anemone deltoidea). 



Color of flower, white; height of plant, 6 to 11 inches; blooms June to August. 

 Photograph by A. H. Barnes. 



trifoliate leaves. This plant extends from sea level to about 2,900 

 feet, when its leaves appear gradually to change from their trifoliate 

 character to unifoliate. All intermediate forms can be found. When 

 the transition is complete it is rechristened TiareUa unifoliata. It 

 extends in this form to the terminal moraines of the glaciers or above. 

 The forest anemone, Anem.one deltoidea (fig. 5), forms beautiful 

 spots here and there because of its creeping roots, which tend to 

 intertwine and bring the slender stems together. The leaves are 

 rhomboid serrate with trifoliate leaflets. The delicate white flowers 

 last a long time here in the dense shade. The fruit is not conspic- 

 uous, like that of its relative, the western anemone (figs. 6, 7, and 8), 

 in the grassy meadows. 



