|Salix purpurea subsp. var.||Purple Willow, Purple Osier, Alaska blue willow, Arctic willow, Purple osier willow|
It is a deciduous shrub growing to 1-3 m (rarely to 5 m) tall, with purple-brown to yellow-brown shoots, turning pale grey on old stems. The leaves are 2-8 cm (rarely to 12 cm) long and 0.3-1 cm (rarely 2 cm) wide; they are dark green above, glaucous green below, and unusually for a willow, are often arranged in opposite pairs rather than alternate. The flowers are small catkins 1.5-4.5 cm long, produced in early spring; they are often purple or red in colour, whence the name of the species (other willows mostly have whitish, yellow or green catkins).
|Standard Cyclopedia of Horticulture|
Salix purpurea. (S. Forbyana, Smith. Vetrix purpurea, Rafin.). Purple Osier. A shrub or small tree, spreading at base, with long, flexible branches: lvs. oblanceolate, serrulate, glabrous, veiny, 3-6 in. long, often appearing opposite: aments sessile, slender; pistillate recurved; scales purple; stamen 1: caps. small, ovate. Eu.—Planted as an ornamental shrub and escaped in many places. Also grown as a basket-willow. Var. pendula, Dipp. (S. nigra pendula, Hort. S. Americana pendula, Hort.). Branches pendent.
Var. lambertiana, W. D. Koch. Lvs. broader, generally obovate-lanceolate, more abruptly acuminate, usually more rounded at the base, up to 4 in. long and 3/4 in. broad. Var. sericea, W. D. Koch. Lvs. silky when young, becoming glabrous. Here belongs the "Kecks Willow" (var. Kecksii, Hort.). Var. amplexicaulis, Boiss. Lvs. sessile or subsessile, cordate or rounded at the base, acuminate, oblong to oblong-lanceolate, glabrous.
Pests and diseases
- ↑ Flora Europaea: Salix purpurea
- ↑ 2.0 2.1 Meikle, R. D. (1984). Willows and Poplars of Great Britain and Ireland. BSBI Handbook No. 4. ISBN 0-901158-07-0.
- ↑ 3.0 3.1 Rushforth, K. (1999). Trees of Britain and Europe. Collins ISBN 0-00-220013-9.
- Standard Cyclopedia of Horticulture, by L. H. Bailey, MacMillan Co., 1963