44. northern black currant, Ribes hudsonianum Rich- 

 ards. (PS-MS, I-C). Primarily in the interior forest area but with 

 occasional locations in the coastal areas. In southeast Alaska 

 at Hyder, Juneau, and the head of Lynn Canal; in central Alaska 

 from the Copper River Basin northward to the south slopes of 

 the Brooks Range; westward to a location in Noatak River Valley, 

 Mountain Village on the Yukon River; south on Kuskokwim 

 River nearly to Bethel, Wood River Lakes and Dillingham, and 

 the head of Bristol Bay; and east to Seward on Kenai Peninsula. 

 Alaska east to Hudson Bay, south to Minnesota, Utah, and Oregon. 



45. swamp gooseberry, Ribes lacustre (Pers. ) Poir. 

 (MS, I-C). Southeastern, south-central, and interior Alaska. 

 Southeastern Alaska from Ketchikan northward to head of Lynn 

 Canal and Glacier Bay but not on outer islands. In interior 

 Alaska from midway between Tok and Big Delta on Tanana 

 River north to Circle Hot Springs, west to Manley Hot Springs, 

 and south to Cantwell. South-central Alaska from Seward north 

 to Matanuska Valley, also a small area in and adjacent to Katmai 

 National Monument in southwestern part. Alaska, eastward to 

 James Bay, southern Labrador, and Newfoundland, south to 

 Pennsylvania, Tennessee, Minnesota, Colorado, and California. 

 Also isolated locations in eastern Asia and northern Japan. 



46. trailing black currant, Ribes laxiflorum Pursh (PS- 

 MS, C). Southeastern and south-central Alaska. From southeastern 

 end of Alaska north along coast to Prince William Sound and 

 Kenai Peninsula; northward to Copper River Basin and in 

 Susitna Valley to just north of Chulitna; also an isolated loca- 

 tion at Lake Iliamna. From southern Alaska east to Alberta and 

 south to Idaho and California. 



47. American red currant, Ribes triste Pall. (PS-MS, 

 I-C) . Mostly within the interior forest of Alaska. Southeast 

 Alaska only at head of Lynn Canal, also reported from vicinity 

 of Icy Bay. From Prince William Sound northward to south 

 slopes of Brooks Range and 2 locations beyond; westward to 

 Noatak and Kobuk Rivers, Seward Peninsula, and inner edge 

 of Yukon-Kuskokwim Delta; south to the Wood River Lakes — 

 Dillingham area and Katmai National Monument; and east to 

 Homer on Kenai Peninsula. Alaska east across Canada to Labra- 

 dor and Newfoundland, south to West Virginia, Minnesota, South 

 Dakota, and Oregon. Also in northeastern Asia. 



48. western serviceberry, Amelanchier alnifolia (Nutt. ) 

 Nutt. (MS-ST, I-C). Southeast Alaska from southeast end north 

 to Wrangell; northeast end from Taku River to Haines and 

 Skagway at head of Lynn Canal; west in southern part from 

 Cook Inlet area to Kenai Peninsula, and base of Alaska Peninsula 

 to Katmai area and Wood River Lakes area north of Dillingham. 

 Also interior along Chitina and Copper Rivers and along Tanana 

 and central Yukon Rivers west to Galena. Alaska and Yukon 

 Territory east to western Ontario and Minnesota, south to Iowa, 

 Nebraska, Colorado, Utah, and northwestern California. This 

 species, as mapped here, includes Pacific serviceberry, Amelan- 

 chier florida Lindl., which was accepted as distinct in "Alaska 

 Trees and Shrubs." 



49. Oregon crab apple, Mains diversifolia (Bong.) 

 Roem. (ST, C). Pacific coast of southeast and southern Alaska, 

 from Portland Canal northwest to Skagway at head of Lynn 

 Canal, also at Yakutat and from Pince William Sound southwest 

 to end of Kenai Peninsula. Southern Alaska southeast along 

 Pacific coast to Washington. Oregon, and northwestern California. 



50. bush cinquefoil, Potentilla frutirosa L. (SS-MS, I-c). 

 Through interior Alaska except parts of southwest, western 



Alaska Peninsula, and Aleutian Islands. Also northern end of 

 southeast Alaska at Yakutat and Haines and Skagway. Alaska 

 across Canada to Labrador, Newfoundland, and Greenland, south 

 to New Jersey, Iowa, New Mexico, and California. Also a 

 northern Eurasia. 



51. prickly rose, Rosa arirulari.s Lindl. 5S-MS 

 Through interior Alaska north to south slope of Brooks Range, 

 also northward at Sadlerochit Hot Springs and Lmiat. 

 Kobuk River and Seward Peninsula, south to Mountain Village 

 on lower Yukon River, Bethel on Kuskokwim River, and Dilling- 

 ham, and east to Kenai Peninsula and Chitina River. Also north 

 end of southeast Alaska at Haines and Skagway and near Juneau. 

 Alaska east across Canada to Labrador and Anticosti south to 

 West Virginia, Minnesota, New Mexico, Idaho, and British 

 Columbia. Also widespread across northern Eurasia. 



52. Nootka rose, Rosa nutkana Presl (MS-LS, Ci. Pacific 

 coast of southeastern and southern Alaska, through southeast 

 from Portland Canal to Haines and Skagway at head of Lynn 

 Canal, also Kenai Peninsula, Afognak and Kodiak Islands, and 

 Unalaska in Aleutian Islands. Southeast along Pacific coast from 

 Aleutian and Kodiak Islands of southern Alaska to northwestern 

 California and inland in mountains to eastern Oregon, Utah, 

 and Colorado. 



53. American red raspberry, Rubus idaeus L. var. 

 strigosus (Michx. ) Maxim. (MS, I-C). Interior Alaska north 

 to Porcupine and Yukon Rivers, west to Holy Cross and Moun- 

 tain Village, south to Lake Aleknagik north of Dillingham, Iliamna 

 Lake, Kenai Peninsula, and Chitina River Valley. Also along 

 mainland of southeast Alaska from Haines and Skagway at head 

 of Lynn Canal southeast to Portland Canal and Annette Island. 

 Alaska across Canada to Newfoundland, south to North Carolina. 

 Iowa, Arizona, California, and northern Mexico. 



54. western thimbleberry, Rubus parviflorus Nutt. (MS, 

 C). Through southeast Alaska from Portland Canal norti 



to Lynn Canal at Haines and at Yakutat. Southeast Alaska east 

 to Ontario and Minnesota, south in mountains to New Mexico. 

 California, and northern Mexico. 



55. salmonberry, Rubus speclabilis Pursh (MS-LS, O. 

 Pacific coast of Alaska through southeast from Portland Canal 

 northwest to Haines at head of Lynn Canal and to Yakutat and 

 west along southern coast from Prince William Sound and Kenai 

 Peninsula to Afognak and Kodiak Islands. Alaska Peninsula, and 

 eastern Aleutian Islands. Southern Alaska southeast to north- 

 western California. Also a variety in Japan. 



56. Greene mountain-ash, Sorbus scopuliua Greene 

 (MS-ST, I-C). Scattered through central interior Alaska from 

 central \ukon River west to Golovin on Bering Sea. south to 

 Aniak. Dillingham, and Katmai. and east to Kenai Peninsula. 

 Susitna Valley, and Copper River Valley. Also scattered through 

 southeast from Skagway and Haines at head of Lynn Canal 

 southeast to Portland Canal. Alaska and British Columbia south- 

 east to Alberta. South Dakota. New Mexico, and California. 



57. Sitka mountain-ash, Sorbus titchensis Roem. MS- 

 ST, C). Pacific coast of southeast and southern Maska. from 

 Portland Canal northwest to head of Lynn Canal at Skagway, 

 and Glacier Bay, west along coast to Yakutat, Prince William 

 Sound. Kenai Peninsula. Katmai area at base of Maska Peninsula. 

 and Afognak and Kodiak Islands. Southern Alaska southeast 

 along coast to southern British Columbia and in mountains to 

 Washington, central California. Nevada, and northwestern 

 tana. Reported from "\ ukon Territory. 



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