KEY TO IMPORTANT WOODY PLANTS 



205 







31. 



33. Stems erect; leaflets glossy green, pointed at tips; 



common w., occasional e. side of Cascades and mountain 

 areas of e. Oreg., e. Wash.; type locality for both, the 

 Cascades of the Columbia River. 



Cascades mahonia and Oregon-grape. 

 34. Leaflets 7-23, each 3- to 5-veined from near base, 

 thick-leathery; leaves nearly erect, clustered near 

 stem tip; stems usually single, unbranched, to 1 or 2 

 feet high, arising from long, scaly underground stems 

 and ending in showy bud %. to 2 inches long; bud scales 

 rigid, sharp-tipped, persistent. 



Cascades mahonia {Mahonia nervosa). 

 34. Leaflets 5-9, with 1 main midrib, turning red, bronze, 

 or purplish in winter; leaves spreading, scattered along 

 branches; stems often clustered, branched, and sucker- 

 ing at base; end buds with triangular, soon-falling bud 

 scales about }{ inch long; shrubs to 10 feet high, or 

 sometimes dwarfed; flowers in clustered, somewhat 

 drooping racemes; often cultivated; the Oregon State 



flower Oregon-grape {Mahonia aquifolium) . 



Stems armed with curved and hooked prickles (as are also 

 the leafstalks, the midribs and veins on under side of leaflets, 

 the flower stalks, and the flower-cluster stalks), coarse, angled, 

 much-branched, often to 10 feet long, perennial, vinelike, 

 creeping on ground or clambering over other plants, rocks, 

 etc. ; leaves of the main stems with 5 leaflets, leaves on flower- 

 ing shoots with 3 leaflets (or sometimes only 1); leaflets 

 deeply and variously cleft or parted; flowers mostly pink or 

 rose-colored; blackberries large and juicy; somewhat weedy; 

 naturalized from the Old World; commoner w. of the Cas- 

 cades; occasional e. Oreg., e. Wash. 



cutleaf blackberry {Rubus laciniatus). 



Cutleaf blackberry 



F-49 1 1 28 



