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Salix discolor, the American pussy willow [2] or glaucous willow, [3] is a species of willow native to North America, one of two species commonly called pussy willow.. It is native to the vast reaches of Alaska as well as the northern forests and wetlands of Canada (British Columbia east to Newfoundland), and is also found in the northern portions of the contiguous United States (Washington ...
Brenneria salicis is a Gram-negative bacterium that is pathogenic on plants.. The bacterium is known to cause 'watermark disease' in willow (Salix ssp.) trees.Watermark disease affects infected trees by occluding the xylem vessels, impeding circulation.
Salix gracilistyla [1] is a species of willow native to Japan, Korea and China known in English as the rose-gold pussy willow. [ 2 ] It is a deciduous shrub that reaches a height of 1–6 m.
Pussy willow is a name given to many of the smaller species of the genus Salix (willows and sallows) when their furry catkins are young in early spring. These species include (among many others): Goat willow or goat sallow (Salix caprea), a small tree native to northern Europe and northwest Asia.
Melampsora caprearum distorts the blades and veins of willow leaves, causing irregular spots with yellow-orange uredinia (which produce a powdery mass of spores). The rust has been found on eared willow ( Salix aurita ), goat willow ( S. caprea ), grey willow ( S. cinerea ) and their hybrids.
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Salix scouleriana seed. Salix scouleriana is a deciduous shrub or small tree, depending on the environment, usually with multiple stems that reach 2 to 7 metres (6 + 1 ⁄ 2 to 23 ft) in height in dry, cold, high elevations, and other difficult environments, and 10 to 20 m (33 to 66 ft) or more in favorable sites.