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A willow flute. A small number of cultivars have been selected for garden use. The most common is S. caprea 'Kilmarnock', discovered by James Smith, with stiffly pendulous shoots forming a mop-head; it is a male clone. A similar female clone is S. caprea 'Weeping Sally'.
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 × sepulcralis 'Chrysocoma', or Weeping Golden Willow, is the most popular and widely grown weeping tree in the warm temperate regions of the world. It is an artificial hybrid between S. alba 'Vitellina' and S. babylonica. The first parent provides the frost hardiness and the golden shoots and the second parent the strong weeping habit.
The Salicaceae are the willow family of flowering plants. The traditional family (Salicaceae sensu stricto ) included the willows, poplars. Genetic studies summarized by the Angiosperm Phylogeny Group (APG) have greatly expanded the circumscription of the family to contain 56 genera and about 1220 species, including the tropical ...
As mentioned in Hooker's Flora Scotica (1821), Smith is credited with the discovery of Primula scotica, [8] Veronica hirsuta [9] and the Kilmarnock Weeping Willow (Salix caprea pendula). [ 10 ] Smith died on 1 January 1848, aged 84.
The fungus forms perennial fruiting bodies that rise as woody-hard, hoof or disc-shaped brackets from the bark of the infested living tree or dead log. The tree species is often willow but it may be commonly found on birch and alder and other broad leafed trees. The top is covered with a dark, often cracked crust, a stem is present only in its ...
Salix × fragilis is cultivated as a fast-growing ornamental tree. The cultivar 'Russelliana' (syn. S. × fragilis var. russelliana) is by far the most common clone of crack willow in Great Britain and Ireland, very easily propagated by cuttings. It is a vigorous tree commonly reaching 20–25 m (66–82 ft) tall, with leaves up to 15 cm long.
The Persian willow is a 2.5 to 10 meter high shrub or tree with striped wood. The twigs are thick, red, with gray tomentose hair up to the second year and later glabrous. The flower buds are egg-shaped, 6 to 9 millimeters long, 4 to 6 millimeters in diameter, blunt or pointed.