11. *western redcedar, Thuja plicata Doiui (LT, C). 

 Southern third of southeast Alaska from Portland Canal north 

 to Hyder, Wrangell, southern Mitkof Island (south of Peters- 

 burg), Woewodski Island, Duncan Canal in southern Kupreanof 

 Island, and southern Kuiu Island. Pacific coast region of south- 

 east Alaska south to northwestern California, also east in Rocky 

 Mountains to western Montana and southeastern British Columbia. 



12. *AIaska-cedar, Chamaecyparis nootkatensis (D. 

 Don) Spach (MT-LT, C). Through southeast Alaska from 

 southern part of Portland Canal north to Berners Bay in Lynn 

 Canal, also local near Haines, and west to Yakobi Island, Lituya 

 Bay, and Yakutat. Also Prince William Sound from Cordova 

 west to Glacier Island, Port Wells, and Latouche Island. Pacific 

 coast from southern Alaska southeast through British Columbia 

 and in mountains to Oregon and northwestern California. 



13. common juniper, Juniperus communis L. (PS-SS, 



I-C). Through most of Alaska except extreme northwest and 

 west, Alaska Peninsula, and Aleutian Islands. Scattered through 

 southeast Alaska from Annette Island to Skagway and Lituya 

 Bay. North in interior to Firth, Porcupine, Yukon, Koyukuk, 

 Kobuk, and Noatak Rivers and north of Brooks Range to Can- 

 ning, Shaviovik, and Chandler Rivers. West to Elim on Seward 

 Peninsula and south to Takotna, and Nuyakuk Lake and other 

 lakes north of Dillingham, and east to Iliamna, Kenai Peninsula, 

 and Chitina River Valley. Alaska, east across Canada to Labra- 

 dor, Newfoundland and Greenland, south mostly in mountains 

 to Georgia, Illinois, New Mexico, and California. Also across 

 northern Europe and Asia. Becomes a small tree rarely in New 

 England and frequently in Europe. Including geographic varieties, 

 this species is the most widely distributed conifer in the world and 

 the most widespread tree species in the north temperate zone. 



14. creeping juniper, Juniperus horizontalis Moench 



(PS, I). Rare and local in southeast interior Alaska along 

 Chitina and Copper Rivers and west to Hicks Creek (east of 

 Palmer). Southern Alaska, Yukon Territory, and Mackenzie, 

 east to Great Slave Lake, Hudson Bay, Labrador, and Newfound- 

 land, south to New York, Michigan, Iowa, and Colorado. This 

 shrub rare in Alaska though widespread eastward is included 

 here so that all 14 species of the State's native conifers will have 

 detailed maps available together. 



15. *balsam poplar, Populus balsamifera L. (MT-LT, 



I-c). Through interior Alaska corresponding to the range of 

 the spruce-hardwood forest, north and west to tree limits and in 

 scattered stands beyond. North on south slopes of Brooks Range 

 in drainages of Porcupine, Koyukuk, Kobuk, and Noatak Rivers; 

 north of Brooks Range in small isolated stands along many 

 rivers draining into Arctic Ocean from Firth River westward 

 but best developed and most extensive along Canning River. 

 West to Igloo (northeast of Teller) near western tip of Seward 

 Peninsula; south to Unalakleet, mouth of Yukon River at Ala- 

 kanuk, reaching coast of Bristol Bay near Dillingham, on Alaska 

 Peninsula at Katmai National Monument and southwest to Chig- 

 nik, and on Kodiak Island. South of Alaska Range to Cook 

 Inlet, Kenai Peninsula, and Copper River drainage. From north- 

 west Alaska east across Canada to Labrador and Newfoundland, 

 south in eastern United States to West Virginia, Indiana, and 

 Iowa and in western mountains locally as far south as Colorado. 

 Intergrades or hybridizes with the next species in southern 

 Alaska where ranges of the two overlap. 



16. *black cottonwood, Populus trichocarpa Torr. & 

 Gray (LT, C) . Pacific coast of southeast and southern Alaska 

 corresponding to the range of the hemlock-Sitka spruce forest. 

 Southeast Alaska from Hyder on Portland Canal and Wrangell 

 northwest, mostly on mainland and uncommon on islands, more 

 common from Stikine River northwest to Skagway at head of 

 Lynn Canal, along the Dyea, Chilkat, and Klehini Rivers, Glacier 

 Bay, and Yakutat, and west to Prince William Sound, Susitna 

 Valley, Kenai Peninsula, and northern part of Kodiak Island. 

 Southern Alaska and southern Yukon Territory south through 

 British Columbia to Montana, Idaho, and California and in 

 mountains to Utah and Baja California. Intergrades or hybridizes 

 with the preceding species in southern Alaska where ranges of 

 the two overlap. Regarded also as a variety or subspecies. 



17. * quaking aspen, Populus tremuloides Michx. (ST- 

 MT, I ) . Through interior Alaska within range of the spruce- 

 hardwood forest but not as far north or west nor as high in 

 mountains as white spruce. North to south slopes of Brooks 

 Range, west to Koyukuk and Kobuk Rivers, and south on Yukon 

 River to Holy Cross and on Kuskokwim to Bethel and to base 

 of Alaska Peninsula at Lake Iliamna and Katmai National Monu- 

 ment. Also south of Alaska Range in Susitna Valley, Cook Inlet, 

 Kenai Peninsula, and Copper River areas. Southeast Alaska only 

 in extreme northern part near Haines and Skagway at head of 

 Lynn Canal. Alaska east across Canada to Labrador and New- 

 foundland, south in Northeastern United States to New Jersey, 

 Virginia, and Missouri, and south in western mountains to 

 Trans-Pecos Texas, California, and Mexico. The most widely 

 distributed tree species in North America. 



18. feltleaf willow, Salix alaxensis (Anderss.) Cov. (LS- 



ST, I-C). Widely distributed and common almost throughout 

 Alaska from southeast Alaska to Arctic Ocean. Southeast Alaska 

 from Hyder to head of Lynn Canal but not on outer islands; 

 north through interior to Arctic Coast and northwest to Cape 

 Lisburne; west to Bering Sea except in a few isolated areas, 

 St. Lawrence, St. Mathew, and Pribilof Islands; southwest on 

 Alaska Peninsula and Aleutian Islands to Unalaska Island; and 

 east to Kodiak Island, Cook Inlet, and Prince William Sound. 

 Alaska east to northwest shore of Hudson Bay and south to cen- 

 tral British Columbia, but not reaching contiguous United States. 

 Also in eastern Asia. 



19. littletree willow, Salix arbusculoides Anderss. LS-ST, 

 I-c). Widely distributed in Alaska from Copper River Basin 

 northward nearly to Arctic Ocean on Sadlerochit River; west 

 in scattered locations north of Brooks Range to Chukchi Sea at 

 Kotzebue and to Bering Sea on Yukon and Kuskokwim deltas, 

 with isolated localities on Seward Peninsula; south to south 

 slopes of Alaska Range with isolated locations on Alaska and 

 Kenai Peninsulas. Alaska east to Hudson Bay and south to 

 British Columbia and central Quebec. 



20. Barclay willow, Salix barclayi Anderss. (MS-ST, I-C). 

 Common along southern coast of Alaska and reaching into the 

 interior basin. From Hyder at southeastern end northward to 

 Yakutat but not reaching outer islands, north to Tanana River 

 with an isolated location at Bettles; west to central Kuskokwim 

 River, with isolated localities at Norton Sound and Yukon Delta, 

 and southwest to Unalaska in Aleutian Islands; and east to 

 Kodiak Island, Kenai Peninsula, and Prince William Sound. 

 From Alaska south along the coast to Washington and eastward 

 to Alberta and Montana. 



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