Brassicaceae 1 2 1 



long; pods erect or ascending, very slender, 

 straight or nearly so, 1-2 inches long. 



Alpine meadows and slopes at the higher 

 elevations throughout the Rockies, flowering 

 in June and July. 



Erect, 10-18 inches high, cinere- 

 ous and rough with 2 -parted hairs, 

 spicuum Leaves narrowly linear-lanceo- 

 (S. Wats.) late or oblong-linear, mostly 

 MacM. entire, the root leaves crowded 



and sometimes repand dentate. 



Mustard. ' ' 



Flowers sulphur yellow in a 



compact head, elongated in fruit, calyx cam- 

 panulate, } inch high, petals J longer, the 

 blades spreading; pods slender, erect or nearly 

 so at maturity, 1-2 inches long. 



In gravelly places, common on the eastern 

 slopes of the Rockies at the lower elevations, 

 flowering in June. 



Smeiowskia Very variable in foliage, finely 

 calycina stellate-pubescent and usually 



(Desv.) 



c A Me er cinereous-villous with larger sin- 

 Smelowskia. gle hairs ; caud ex stout , branched . 



