BITTERBRUSH 



Pur'shia tridenta'ta, syn. Kun'zia tridenta'ta 



B116 

 (2 leaves) 



Flowers yellow, solitary on 

 short branchlets 



Stamens about 25, in one 

 series 



Petals 5, spatula-shaped or re- 

 verse egg-shaped, about % to K 

 in. long, spreading 



Outer united flower parts (ca- 

 lyx) funnel-shaped, with 5 el- 

 liptic or oblong lobes, persistent, 

 downy-haired or woolly, resin- 

 ous-dotted below 



Stems woody, irregularly 

 branched , spreading, with brown 

 or grayish bark 



Leaves alternate, clustered, 3- 

 toothed at tips, small, K to- 

 about % in. long, wedge-shaped 

 or reverse-egg-shaped, with 

 rolled-under margins, short- 

 stalked, green and fine-hairy 

 above, white-woolly beneath 



"Seeds" (achenes) solitary or 

 sometimes 2, spindle-shaped, 

 protruding from persistent ca- 

 lyx, up to K in. long, leathery, 

 slightly grooved, fine-hairy, 

 tipped by a persistent, tapering 

 beak (style) 



