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Arctic vegetation is largely controlled by the mean temperature in July, the warmest month. Arctic vegetation occurs in the tundra climate, where trees cannot grow.Tundra climate has two boundaries: the snow line, where permanent year-round snow and ice are on the ground, and the tree line, where the climate becomes warm enough for trees to grow. [7]
Floristic regions in Europe according to Wolfgang Frey and Rainer Lösch Epilobium angustifolium Vaccinium vitis-idaea Betula nana in Greenland Alnus viridis. The Circumboreal Region in phytogeography is a floristic region within the Holarctic Kingdom in Eurasia and North America, as delineated by such geobotanists as Josias Braun-Blanquet and Armen Takhtajan.
When complete, the list below will include all food plants native to the Americas (genera marked with a dagger † are endemic), regardless of when or where they were first used as a food source. For a list of food plants and other crops which were only introduced to Old World cultures as a result of the Columbian Exchange touched off by the ...
The native flora of the United States has provided the world with a large number of horticultural and agricultural plants, mostly ornamentals, such as flowering dogwood, redbud, mountain laurel, bald cypress, southern magnolia, and black locust, all now cultivated in temperate regions worldwide, but also various food plants such as blueberries ...
It includes the following regions: Flora of the United States (including Flora of Alaska and Flora of the Aleutian Islands, excluding Flora of Hawaii) Flora of Canada; Flora of Mexico; Flora of Greenland; The WGSRPD defines Northern America differently from the usual geographical definition of North America.
The Flora of North America North of Mexico (usually referred to as FNA) is a multivolume work describing the native plants and naturalized plants of North America, including the United States, Canada, St. Pierre and Miquelon, and Greenland. It includes bryophytes and vascular plants.
The Blue Ridge, heartland of the region Liriodendron tulipifera, closely related to L. chinense from China. The North American Atlantic region is a floristic region within the Holarctic kingdom identified by Armen Takhtajan and Robert F. Thorne, spanning from the Atlantic and Gulf coasts to the Great Plains and comprising a major part of the United States and southeastern portions of Canada.
Eriophorum angustifolium, commonly known as common cottongrass or common cottonsedge, is a species of flowering plant in the sedge family, Cyperaceae.Native to North America, North Asia, and Europe, it grows on peat or acidic soils, in open wetland, heath or moorland.