PLANTS DECIDUOUS ■ SPRING AND SUMMER 



Leaves Alternate and Simple 

 Plants Armed 



1. Twigs spiny-tipped. 

 2. Shrubs with sagebrush odor and taste, less than 2 feet high; 

 leaves broadly fan-shaped, deeply cut into several 3-lobed di- 

 visions, shed in early summer; twigs of 2 kinds: (a) short, rigid, 

 flowering twigs becoming spiny-tipped, (b) stouter leafy twigs 

 becoming big-budded after leaves fall, not spiny-tipped; bushy, 

 much-branched shrubs with shreddy bark; desert or aklaline 

 areas of Lake, Harney, and Malheur Cos., se. Oreg., not reported 



from Wash __bud sagebrush (Artemisia spinescens). 1 



2. Shrubs without sagebrush odor or taste. 



3. Twigs bright green, ridged and lined; leaves small (to }{ inch 

 long), gray green, reversely lance-shaped; margins entire; 

 stipules tiny, pointed at tips, grown to bulbous leafstalk base, 

 appearing as dark swelling at point of attachment to twig; 

 stems often arching; much-branched shrubs to 10 feet high; 

 dry, rocky limestone areas, Harney Co. to Snake River canyons 

 in ne. Oreg., se. Wash. 



Snake River greasebush (Forsellesia stipulifera) . 



1 See Evergreen Key for low sagebrush (Artemisia arbuscula), the persistent 

 dead flowering twigs of which are sometimes weakly sharp-tipped. 



Enlarged leaf 



V3 // 



Enlarged portion of twig 

 showing swollen dark 

 leafstalk base with at- 

 tached stipules 



Bud sagebrush 



F-4940].'! 



Snake River greasebush 



