KEY TO IMPORTANT WOODY PLANTS 



203 



tipped after fruits fall; erect, often straggly shrubs, to 6 feet 

 high; among lava rocks in dry sites, Deschutes and Crook 

 Cos., s. and e. in Oreg. ; not reported from Wash. 



desertsweet, or tansybush (Chamaebatiaria 



millefolium). 



32. Leaflets broad, hollylike, 3-23, odd-pinnately compound 



(or end leaflet sometimes lacking) ; berries blue, with whitish 



waxy "bloom" (glaucous), in end clusters (racemes) ; shrubs 



with yellow wood and very bitter inner bark. 



mahonia, hollygrape, and Oregongrape (Mahonia spp.). 

 33. Stems prostrate, runnerlike or short-upright, from long, 

 much-branched, scaly underground stems; leaflets 

 usually 5 (3-7), thin-leathery, with 1 main midrib, dull 

 bluish green on upper surface, whitish with microscopic 

 "pimples" (papillae) on under surface, rounded at tip, 

 turning brilliant red in fall except where leaflets overlap 

 or where growing in shade ; hillsides or open pine woods ; 

 common, e. Oreg., e. Wash. 



creeping mahonia, or hollygrape (Mahonia repens) 



End bud 



Leaflet with typically 

 pointed tip, shiny-green 

 on both sides 



F-49412R, 1^ 



Oregon-grape 



