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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]
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 ...
Lonicera caerulea, also known by its common names blue honeysuckle, [2] sweetberry honeysuckle, [3] fly honeysuckle [3] (blue fly honeysuckle [4]), blue-berried honeysuckle, [2] [5] or the honeyberry, [2] [3] is a non-climbing honeysuckle native throughout the cool temperate Northern Hemisphere regions of North America, Europe, and Asia.
North America, occasionally naturalized in Europe: Berries, edible raw (though acidic) or made into a jelly [12] Crabapples: Malus sylvestris and other Malus species: Malus is native to the temperate zone of the Northern Hemisphere, in Europe, Asia and North America. Fruit (from July), edible raw or, if too bitter, cooked as a jelly (containing ...
During the European colonization of North America, potash made from tree ashes was exported back to Europe as fertilizer. [19] At this time in history, clearcutting of the original temperate deciduous forests was also performed to make space for agricultural land use, so many forests now present are second-growth. [1]
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.
Populus deltoides is a large tree growing to 20–30 m (65–100 ft) tall and with a trunk up to 2.8 m (9 ft 2 in) diameter, one of the largest North American hardwood trees. The bark is silvery-white, smooth or lightly fissured when young, becoming dark gray and deeply fissured on old trees.
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.