| Northern Europe | Finland, Norway, Sweden |
| Middle Europe | Austria, Czechoslovakia, Hungary, Poland, Switzerland |
| Southwestern Europe | France |
| Southeastern Europe | Italy, Romania, Yugoslavia |
| Eastern Europe | Belarus, Baltic States, Central European Russia, East European Russia, North European Russia, South European Russia, Northwest European Russia, Ukraine |
| Siberia | Altay, Buryatiya, Chita, Irkutsk, Krasnoyarsk, Tuva, West Siberia |
| Russian Far East | Amur, Kamchatka, Khabarovsk, Kuril Is., Primorye, Sakhalin |
| China | China South-Central, Inner Mongolia, Manchuria, China North-Central, Qinghai, China Southeast, Tibet |
| Mongolia | Mongolia |
| Eastern Asia | Japan, Korea, Taiwan |
| Indian Subcontinent | Nepal |
| Malesia | Philippines |
| Subarctic America | Aleutian Is., Alaska, Northwest Territories, Yukon |
| Western Canada | Alberta, British Columbia, Manitoba, Saskatchewan |
| Eastern Canada | Labrador, New Brunswick, Newfoundland, Nova Scotia, Ontario, Prince Edward I., Québec |
| Northwestern U.S.A. | Colorado |
| North-Central U.S.A. | Illinois, Minnesota, Wisconsin |
| Northeastern U.S.A. | Connecticut, Indiana, Maine, Massachusetts, Michigan, New Hampshire, New York, Pennsylvania, Vermont |
| Southwestern U.S.A. | California |