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S. arctica is typically a low shrub growing to only 15 centimetres (6 inches) in height, rarely to 25 cm (10 in), although it may reach 50 cm (20 in) in height in the Pacific Northwest. [4] It has round, shiny green leaves 1–4 cm ( 1 ⁄ 2 – 1 + 1 ⁄ 2 in) long and 6 cm ( 2 + 1 ⁄ 4 in) broad; they are pubescent, with long, silky, silvery ...
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A well-known ornamental example is the weeping willow (Salix × sepulcralis), which is a hybrid of Peking willow (Salix babylonica) from China and white willow (Salix alba) from Europe. The widely planted Chinese willow Salix matsudana is now considered a synonym of S. babylonica.
Salix jepsonii – Jepson's willow; Salix arctica – Arctic willow; Herbaceous perennials and others Allium obtusum – Red Sierra onion, subalpine onion; Carex spp. – Sedges (see also Carex spp. "lower montane forest") Carex specifica – Narrowfruit sedge; Elymus violaceus, syn. Elymus sierrae; Erigeron aequifolius – Hall's daisy (sn ...
Species from the Alaskan coastline and islands have also adapted well in the Faroe Islands, especially Pinus contorta, Picea sitchensis, Salix alaxensis, Populus trichocarpa and Alnus sinuata. The biggest Alaskan pine tree ( Pinus contorta ) in Europe (in width , not in height ), is to be found in the Selatrað plantation in the Faroe Islands.
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Salix acutifolia Willd. – violet willow; Salix aegyptiaca L. Salix aeruginosa E.Carranza; Salix alatavica Kar. ex Stschegl. Salix alaxensis (Andersson) Coville – Alaska willow; Salix alba L. – white willow; Salix alexii-skvortzovii A.P.Khokhr. Salix alpina Scop. – alpine willow; Salix amplexicaulis Bory & Chaub. Salix amygdaloides ...
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]