DESCRIPTION OF ALKALI-INDICATING PLANTS 75 



generally being somewhat more dwarfed than those farther 

 southward. 



Artcmesia spinescens {Eat). Bud brush has the woolly 

 covering and the general appearance of common sagebrush, 

 but is dwarfed --4 to 16 inches high and is spiny. 

 Found throughout the West. 



Aster angustus. Perennial herb with stems 4 to 12 

 inches high, branching, leafy. It has the typical aster 

 design of flowers, but they are smaller with the corolla 

 of the ray flowers reduced to the tube and much shorter 

 than the elongated style. 



Aster paucifiorus. Stems 8 to 10 inches high from a 

 slender root-stock, single and bearing few heads. Leaves 

 moderately fleshy and elongated in shape. 



Aster xylorhiza. Perennial with deep-set woody roots 

 supporting several or solitary stems. The heads are large 

 with conspicuous white rays. Stems leafy, about 4 to 8 

 inches high, terminating in a short flower stalk. 



A triplex. - Salt-bush or shadscale (A triplex spp.), peren- 

 nial and annual types perennial usually bushy or 

 shrubby, and annual usually taller and more weed-like. 

 Leaves generally alternate, simple, and often silvery or 

 white scurfy . or having an ashen-gray color. Bush is 

 often mistaken for sagebrush, but several species have 

 spines or thorns. 



Crcpis glanca. Perennial herb with few small yellow 

 flowers borne upon a leafless or practically leafless long 

 stem. It is from 8 to 24 inches high and characterized 

 by its covering of white powdery material on leaves and 

 elsewhere and lack of pubescence. 



Clirysothamnus spp. ~ - Rabbit brush, or false golden-rod, 

 are shrubby plants with woody base on which shoots 

 holding cylindrical, often hairy, but sometimes resinous 



