KEY TO IMPORTANT WOODY PLANTS 13 



14. Leaves usually hairless except for finely white- 

 hairy-fringed margins (sometimes with fine, 

 whitish hairs on under leaf-surfaces) ; flowers 

 nodding, hairless outside, lobed to near the 

 middle; petals white or pink; gooseberries wine- 

 colored; very susceptible to white pine blister 

 rust; erect shrubs to 6 feet high; e. Oreg., e. 

 Wash__whitestem gooseberry (Ribes inerme). 

 14. Leaves soft-hairy, often broader than long; 

 leafstalks hairy-fringed; flowers sparsely soft- 

 hairy outside, lobed to below middle; goose- 

 berries black, with whitish "bloom"; tall, 

 spreading shrubs with long-arching branches; 

 along streambanks; Jefferson Co., Oreg., s. to 

 Klamath Lake; type locality, banks of Klamath 

 River near Keno, Oreg. 



Klamath gooseberry (Ribes klamathense) . 

 13. Twigs gray to brown, finely white-hairy, not 

 glandular-hairy, often prickly and/or bristly be- 

 tween joints on old wood; spines rigid, usually 

 single except on fast-growing shoots where they are 

 3-parted; leaves mostly 5-lobed, heart-shaped at 

 base, finely hairy on both sides, glandular-hairy 

 on under surface; leafstalks glandular-hairy; 

 flowers tubular-bell-shaped, greenish, lobed to 

 below middle, hairless outside, nodding in inch- 

 long clusters; petals white; gooseberries reddisli 

 purple to black; erect shrubs to 10 feet high, with 

 widely spreading branches; somewhat susceptible 

 to white pine blister rust; along streams, Wallowa 

 and Blue Mts., ne. Oreg., se. Wash.; type locality, 

 Blue Mts., lat. 46° 33'. 



Idaho gooseberry (Ribes irriguum). 

 11. Spines more than y 2 inch long; stems slender; goose- 

 berries smooth; styles hairy toward base. 

 15. Twigs white, grayish, or buff-colored, glandular- 

 hairy as are also both leaf surfaces, leafstalks, and 

 the inch-long flower-cluster stalks; white, soft, 

 spreading hairs also present on young twigs, leaf- 

 stalks, and under leaf -surf aces; leaves square-cut or 

 heart-shaped at base; the coarser spines usually 3- 

 parted; prickles and bristles often numerous on 

 younger branches ; flowers tubular, lobed above mid- 

 dle, greenish white to pinkish, soft-hairy outside; 

 gooseberries purplish black, in drooping clusters; 

 stems long arching, to 13 feet long; along streams, 

 ne. Oreg., e. Wash.; type locality (probably Uma- 

 tilla) River banks near Pendleton, Oreg. 



Umatilla gooseberry (Ribes cognatum). 

 15. Twigs cinnamon to dark reddish brown, hairless or 

 nearly so, usually not prickly or bristly between 

 joints; spines darker than twigs, often 3-parted; 

 leaves suggestive of those of golden currant, thick, 

 shiny, shallowly lobed and with few, broad, rounded 



