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Salix lanata, the woolly willow, is a subarctic species of willow native to Iceland, the Faeroe Islands and Finland, through to eastern Siberia. In Scotland it can be found in only a few localities of Perthshire, Angus and Aberdeenshire, generally on rocky mountain sides at altitudes of 600–900 m (1,969–2,953 ft).
An endemic species is a plant only native to a certain area. Outside this area, unless spread naturally it is considered non-native, usually as a result of cultivation. Britain and Ireland have few endemic trees, most being micro-species of Whitebeam. But there are some interesting endemic trees nevertheless.
Willow species are hosts to more than a hundred aphid species, belonging to Chaitophorus and other genera, [16] forming large colonies to feed on plant juices, on the underside of leaves in particular. [17] Corythucha elegans, the willow lace bug, is a bug species in the family Tingidae found on willows in North America.
Salix alba, the white willow, is a species of willow native to Europe and western and central Asia. [ 2 ] [ 3 ] The name derives from the white tone to the undersides of the leaves. It is a medium to large deciduous tree growing up to 10–30 m tall, with a trunk up to 1 m diameter and an irregular, often-leaning crown.
The following species in the genus Salix are recognised by Plants of the World Online: [1] ... Salix babylonica L. – Babylon willow, Peking willow; Salix baileyi C ...
A bibliographic database of the species has been compiled by the Botanical Society of Britain and Ireland. [1] The lists (spread across multiple pages due to size) give an English name and a scientific name for each species, and two symbols are used to indicate status (e for extinct species, and * for introduced species).
Salix triandra, with the common names almond willow, almond-leaved willow or black maul willow, is a species of willow native to Europe and Western and Central Asia. It is found from south-eastern England east to Lake Baikal , and south to Spain and the Mediterranean east to the Caucasus , and the Alborz Mountains.
Salix cinerea (common sallow, grey sallow, grey willow, grey-leaved sallow, large grey willow, pussy willow, rusty sallow [2]) is a species of willow native to Europe and western Asia. [ 3 ] [ 4 ] The plant provides a great deal of nectar for pollinators .