Woolen willow
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Woolly willow ( Salix lanata ) in Iceland |
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The woolly willow , formerly also called woolly willow , ( Salix lanata ) is a shrub from the genus of the willow ( Salix ) with initially white woolly hairy branches and long white, silky hairy leaf blades. The natural range of the species is in northern Europe and extends to the east of Siberia. It is often used as a hedge plant.
description
The woolly willow is a bulky shrub up to 1.5 meters high with thick branches. Young shoots and buds are thickly white and woolly hairy. The leaves have large, entire stipules and a 0.5 to 1.5 centimeter long stem. The leaf blade is 2.5 to 7 centimeters long, rounded-egg-shaped to obovate, pointed, with a broadly wedge-shaped to almost heart-shaped base and entire to slightly wavy leaf margin. Both sides are initially dense and long, white, silky and hairy later. The upper side of the leaf is then cloudy green, the underside bluish green and nervous. Six to ten pairs of nerves are formed.
The inflorescences are 2 to 2.5 centimeters long, elliptical, sedentary and densely golden-yellow haired catkins . The bracts are hairy dark brown and golden yellow with an elongated nectar gland. Male flowers have two bare stamens . The ovary of female flowers is short-stalked and glabrous. The stylus is long, the scars are large and undivided. The woolly willow blooms in April.
The number of chromosomes is 2n = 38.
Occurrence and location requirements
The natural range is in Europe in the north of Finland, in Norway, Sweden and in Scotland, in the European part of Russia and in Siberia. The woolly willow grows in cool, moist forests on well-drained, fresh to moist, acidic to neutral, gravelly to sandy-humic, moderately nutrient-rich soils in sunny to light-shaded, cool summer and cold locations. The species is rarely found in moors and marshland on boggy and wet-peat subsoil. The woolly willow is frost hardy . The distribution area is assigned to winter hardiness zone 4 with mean annual minimum temperatures of −34.4 to −28.9 ° C (−30 to −20 ° F).
Systematics
The woolly willow ( Salix lanata ) is a species from the genus of willows ( Salix ) in the willow family (Salicaceae). It was first scientifically described by Carl von Linné in the Species Plantarum in 1753 . The generic name Salix comes from Latin and was already used by the Romans for various types of willow. The specific epithet lanata also comes from Latin and means "covered with wool".
use
The woolly willow is often used as a hedge plant. Young twigs are edible, but not tasty. The inner rind can be dried and used as flour in making bread. Since the taste is extremely bitter, it was only used in times of hunger.
proof
literature
- Andreas Roloff , Andreas Bärtels: Flora of the woods. Purpose, properties and use. With a winter key from Bernd Schulz. 3rd, corrected edition. Eugen Ulmer, Stuttgart (Hohenheim) 2008, ISBN 978-3-8001-5614-6 , p. 581.
- Helmut Genaust: Etymological dictionary of botanical plant names. 3rd, completely revised and expanded edition. Nikol, Hamburg 2005, ISBN 3-937872-16-7 (reprint from 1996).
Individual evidence
- ↑ German name according to Roloff et al .: Flora der Gehölze , p. 581
- ↑ a b c d Roloff et al .: Flora der Gehölze , p. 581
- ^ Salix lanata at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
- ↑ a b c Salix lanata . In: Germplasm Resources Information Network (GRIN). United States Department of Agriculture, accessed August 6, 2012 .
- ↑ Exactly: Etymological Dictionary of Botanical Plant Names , p. 552
- ↑ Exactly: Etymological Dictionary of Botanical Plant Names , p. 325
- ^ Salix lanata. In: Plants for a Future. Retrieved August 6, 2012 .
