112 HANDBOOK 14 8, U.S. DEPARTMENT OF AGRICULTURE 



1 1 . Spines single or 3-parted; prickles and/or bristles present 

 or lacking; twigs distinctly ridged or lined downward 

 from ends of leaf scars; bark often split and peeling 

 somewhat spirally; fruit-cluster stalks (peduncles) some- 

 times persistent but berry stalks (pedicels) falling with 



the berries gooseberries. 



13. Twigs hairless or nearly so, usually without prickles 

 or bristles. 

 14. Spines mostly single; end buds about same size as 

 side buds. 

 15. Twigs whitish or pale straw-colored; spines few, 

 weak, short (V4 to % inch long); side buds ap- 

 pressed, flattened on side next to twig; older 

 bark reddish brown; branches often drooping or 

 trailing; moist to rather dry sites along streams; 

 widely distributed, e. Oreg., e. Wash.; susceptible 

 to white pine blister rust. 



whitestem gooseberry (Ribes inerme). 

 15. Twigs yellow or deeply straw-colored, often long- 

 arching; spines strong, to about l /% i ncn l° n g» 

 straight, spreading at almost right angles to twig; 

 side buds somewhat egg-shaped, about % inch 

 long, not appressed or flattened on side next to 

 twig; older bark gray; shrubs often thicket-form- 

 ing, growing along dry, rocky ledges; from 

 northern Crook Co. through John Day Gorge 

 to Blue and Wallowa Mts., ne. Oreg., upper 

 Snake River canyons, se. Wash, (type locality, 

 5 miles w. of Tmnaha, Wallowa Co., ne. Oreg.). 

 Goodding gooseberry (Ribes gooddingii). 

 14. Spines often 3-parted, to nearly 1 inch long, ascend- 

 ing on younger shoots, spreading or recurved on 

 older branches, darker than buds and the cinnamon 

 or reddish-brown twigs; prickles and bristles lacking 

 or few, weak, short, reflexed; older bark dark gray; 

 buds sometimes clustered at twig tips; fruit-cluster 

 stalks (peduncles) to 2 inches long, slender, droop- 

 ing, often persistent; berry stalks (pedicels) very 

 slender, sometimes persistent with the large, bluish 

 black berries; widely branching shrubs to 13 feet 

 high; rocky banks or gravelly soils in moist sites 

 along streams of ne. Oreg., se. Wash. 



snow gooseberry (Ribes niveum). 



13. Twigs hoary with whitish or grayish hairs; spines, 



prickles and or bristles usually reflexed; fruit-cluster 



stalks (peduncles) short (to about 1 inch long), 



sometimes persistent. 



16. Spines mostly single except on vigorous twigs 



where they are often 3-parted, to nearly V2 inch 



long; prickles and/or bristles usually on older parts 



of twigs; twigs pale gray or straw-colored, with 



very fine, short whitish hairs, not glandular; erect 



shrubs to 10 feet high, with widely spreading 



branches; somewhat susceptible to white pine blister 



