THE FLORA OF MOUNT RAINIER 



of white flowers. Essentially a lowland plant, but occurring up 

 to 5,500 feet altitude, especially in burnt ground. 



Hieracium gracile Hooker. 



A small hawkweed with yellow flowers in black hairy involucres. 

 A common plant at 5,500 to 6,500 feet altitude. 



Cirsium edule Nuttall. 



Plentiful on the ridges of Moraine Park at the limit of trees. 

 Also reported by Gorman as occurring in open woods near the 

 timber line in Cowlitz canyon. This thistle is abundant at the 

 sea level, and the roots were formerly a favorite food of the Indians. 



Saussurea americana D. C. Eaton. 



A peculiar plant with leafy stems, two to four feet high, bearing 

 a dense cluster of elongate rayless heads of purple flowers. Found 

 only on the high ridge north of the foot of Cowlitz Glacier. 



Senecio ochraceus Piper. 



Goat Mountains, Allen, No. 230. 



Senecio triangularis Hooker. 



A tall species with triangular coarsely dentate leaves and 

 numerous rather small heads of yellow flowers. Abundant in the 

 marsh at Longmire Springs and in wet places on the mountain 

 slopes up to 6,000 feet altitude. 



Senecio ductoris Piper. 



A low species with thickish crenate leaves and deep yellow heads. 

 Found only on the moraine on the south side of Cowlitz Glacier. 



Senecio flettii Wiegand. 



Found near Cowlitz Chimneys by Miss Winona Bailey, in 1915 ; 

 previously known only from the Olympic Mountains. 



Arnica latifolia Bongard. 



A smooth cordate leaved plant with one to five heads, resembling 

 small sunflowers. Not uncommon up to 6,000 feet altitude, espe- 

 cially in the shelter of timber. 



Arnica mollis Hooker. 



Similar to the preceding, but the leaves oblong, nearly entire, 

 and viscid glandular. Abundant along the rivulets, 4,000 to 

 6,000 feet altitude. 



Arnica aspera Greene. 



Described from specimens collected in Spray Park. It is very 

 similar to A. mollis Hooker, but the pubescence is coarser. 



Arnica eradiata (Gray) Heller. 



Closely related to the preceding but easily recognized by its 

 rayless heads. It occurs on the steep slopes above Sluiskin Falls. 



Luina hypoleuca Bentham. 



A beautiful suffruticose plant, six to twelve inches high, with 



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