3 J 6 Carduaceae 



Artemi i Simple or branching, silky-hairy 



frigida anc ^ silvery throughout; stems 



Willd. numerous and spreading, about 



Pasture a f oot fogj^ Leaves mainly 



Wormwood. . , + -. . 1 ., . J .. 



I . twice ternately divided into lin- 



ear crowded lobes. Heads globular, about J 

 of an inch in diameter, numerous, in more or 

 less racemose heads ; involucre pale, greenish- 



^XJ '& 



yellow, woolly ; bracts narrow and herbaceous. 

 In open dry ground and on banks through- 

 out the Rockies at the lower altitudes; 

 flowering in July. 



A . . Stems slender, 9-12 inches high, 

 discolor spreading from a woody base. 



Dougl. Leaves pinnately parted into 



Green narrow, linear or lanceolate, en- 



Wormwood. . . 



tire or spreading cut divisions 



and lobes, white beneath with cottony hairs, 

 green and nearly smooth above. Heads J 

 of an inch high, numerous in a wand-like 

 panicle ; involucre hemispherical-campanu- 

 late, greenish and smooth or nearly so, 

 20-30 flowered. 



