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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. Early signs of the disease are wilting or dried-out, dead leaves on intermittent branches throughout the tree's crown.
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 ...
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 caprea, known as goat willow, pussy willow or great sallow, is a common species of willow native to Europe and western and central Asia. [ 3 ] Description
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