|Sorbus domestica subsp. var.||Service tree|
Sorbus domestica (Service Tree, or sometimes True Service Tree to distinguish it from the Wild Service Tree; syn. Cormus domestica (L.) Spach) is a species of Sorbus native to western, central and southern Europe, northwest Africa (Atlas Mountains), and southwest Asia (east to the Caucasus).
It is a deciduous tree growing to 15–20 m (rarely to 30 m) tall with a trunk up to 1 m diameter, though can also be a shrub 2–3 m tall on exposed sites. The bark is brown, smooth on young trees, becoming fissured and flaky on old trees. The winter buds are green, with a sticky resinous coating. The leaves are 15–25 cm long, pinnate with 13-21 leaflets 3–6 cm long and 1 cm broad, with a bluntly acute apex, and a serrated margin on the outer half or two thirds of the leaflet. The flowers are 13–18 mm diameter, with five white petals and 20 creamy-white stamens; they are produced in corymbs 10–14 cm diameter in late spring, and are hermaphrodite and insect pollinated. The fruit is a pome 2–3 cm long, greenish-brown, often tinged red on the side exposed to sunlight; it can be either apple-shaped (f. pomifera (Hayne) Rehder) or pear-shaped (f. pyrifera (Hayne) Rehder).
It is a long-lived tree, with ages of 300–400 years estimated for some in Britain.
|Standard Cyclopedia of Horticulture|
Sorbus domestica, Linn. (Pyrus Sorbus, Gaertn. P. domestica. Smith. Cormus domestica, Spach). Service Tree. Fig. 3650. Round-headed tree, 30-60 ft. high: winter buds glutinous: petioles tomentose; lfts. 11-17, obovate-oblong to oblong, sharply and rather coarsely serrate, with acuminate teeth, usually entire near the base, green and glabrous above, floccose-tomentose beneath, at least when young, 1-2 1/2 in. long: fls. white, 1/2 in. across, in broadly pyramidal rather loose, tomentose corymbs: fr. 1/2 – 1 1/4 in. across, usually yellowish, with red or orange cheek, apple-shaped in var. maliformis, Lodd., pear-shaped in var. pyriformis, Lodd. May. S. Eu., N. Afr., and W. Asia.—This species is often confounded with the European mountain-ash, from which it is almost indistinguishable without frs. or fls., except by the glutinous winter buds. CH
Pests and diseases
- ↑ 1.0 1.1 Rotach, P. (1995). Service tree Sorbus domestica Technical guidelines for genetic conservation and use. EUFORGEN. Available online (pdf file)
- ↑ 2.0 2.1 Rushforth, K. (1999). Trees of Britain and Europe. Collins ISBN 0-00-220013-9.
- ↑ 3.0 3.1 Mitchell, A. F. (1974). A Field Guide to the Trees of Britain and Northern Europe. Collins ISBN 0-00-212035-6
- ↑ 4.0 4.1 4.2 Hampton, M., & Kay, Q. O. N. (1995). Sorbus domestica L., new to Wales and the British Isles. Watsonia 20 (4): 379-384. Available online (pdf file)
- ↑ Hampton, M. (1996). Sorbus domestica L. - comparative morphology and habitats. BSBI News 73.