38 BULLETIN 545, U. S. DEPARTMENT OF AGRICULTURE. 



Liliaceae - Lily. 



Allium validum. 



Allium platyphyllum. 



Allium fibrillum. 

 Melanthactae Bunchflower. 



Veratrum viride. 

 Salicaceae Willow. 



Salix scouleriana. 

 Polygonaceae Buckwheat. 



Polygonum phytolaccaefolium. 

 Geraniaceae Geranium. 



Geranium viscosissimum. 

 Onagraceae Evening primrose. 



Chamaenerion angustifolium. 

 Apiaceae - -Parsnip. 



Ligusticum oreganum. 

 Polemoniaceae. . f Phlox. 



Polemonium pulcherrimum. 

 Vacciniaceae Blueberry. 



Vacdnium membranaceum. 

 Menthaceae Mint. 



Agastache urticifolia. 

 Scrophulariaceae Beardtongue. 



Pentstemon procerus. 

 Caprifoliaceae * Honeysuckle. 



Sambucus melanocarpa. 



Sambucus glauca. 

 Valerianaceae Valerian. 



Valeriana sitchensis. 

 Cichoriaceae , Chicory. 



Hieradum cynoglossoides . 



Agoseris glauca. 

 Asteraceae Aster. 



Rudbeckia occidentalis. 



Achillea lanulosa. 



Senecio triangularis. 



Senecw columbianus. 



MOUNTAIN ONION. 



(Allium validum.) 



Onions belong to the lily family. About 275 species have been 

 described, and 40 or more are found in the western United States. 



Mountain onion, an account of its abundance, size, and the relish 

 with which it is eaten, is one of the most valuable of these plants. 

 It usually attains a height of 1 to 2 feet. The bulbs differ from those 

 of other local species in being narrow and much elongated. They 

 are provided with a rose-white, delicate covering. The rootstooks are 

 unusually stout, and the plant makes a bunched growth, producing 

 a heavy, dense rose-colored or nearly white flower cluster (Plate 

 XXXV) . Mountain onion is restricted to the Hudsonian and timber- 

 line regions. It belongs to the group of plants which require a moist 

 or even wet soil throughout the year and occurs in wet meadows 

 and springy places within the altitudinal limits of its range. The 



