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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. Early signs of the disease are wilting or dried-out, dead leaves on intermittent branches ...
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 ...
Grey willow or grey sallow (Salix cinerea), a small tree native to northern Europe. American pussy willow (Salix discolor), native to northern North America. Before the male catkins of these species come into full flower they are covered in fine, greyish fur, leading to a fancied likeness to tiny cats, also known as “pussies”. The catkins ...
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.
A decade on from the arrival of the disease in the UK, the Woodland Trust wants to see action to boost British nurseries to protect our woods. ‘Real threat’ of importing new tree diseases as ...
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.
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
The black willow is the only United States native willow species to be used as timber for a variety of different items. Black willow lumber is used in furniture and shipping containers. The largest production site for black willow timber was in Louisiana at its peak during the 1970s. [21] The wood of Salix nigra is very lightweight.