Persian oak
| Persian oak | ||||||||||||
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Persian oak ( Quercus macranthera ) |
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| Quercus macranthera | ||||||||||||
| Fish. & CAMey. ex Hohen. |
The Persian oak ( Quercus macranthera ) is a medium-sized tree belonging to the genus oak in the beech family . The distribution area is in Turkey, northern Iran and the southeast of the Caucasus .
description
The Caucasian oak is one to 20, rarely up to 30 meters high tree with domed crown. The bark is thin and flakes off in large sheets. The shoots are thick and hairy with gray tufts, they do not begin to bare until the 2nd year. The buds have permanent, thread-like stipple scales. The leaves are 8 to 20 centimeters long, obovate, with a rounded tip and a narrowed base. The blade is regularly flat-lobed with 7 to 11 rounded, egg-shaped lobes on each side. The lobes in the middle of the leaf are the largest. Seven to eleven pairs of nerves are formed. The upper side of the leaf is dark green and almost hairless, the underside is hairy gray to yellowish tomentose. The fruits are about 2.5 centimeters long, egg-shaped-ellipsoid and half surrounded by a hemispherical fruit cup with lanceolate, upright or splaying scales.
Distribution and ecology
The distribution area is in northern Iran , Turkey, Azerbaijan and Armenia . It grows in steppes and dry forests on nutrient-rich, dry to fresh, weakly acidic to strongly alkaline, sandy-gravelly or sandy-loamy soils in sunny to light-shaded locations. The species is sensitive to moisture, loves warmth and is usually frost hardy.
Systematics and research history
The Persian oak ( Quercus macranthera ) is a species from the genus of oaks ( Quercus ) in the beech family (Fagaceae). It was first described in 1838 by Friedrich Ernst Ludwig von Fischer and Carl Anton von Meyer in the Bulletin de la Société Impériale des Naturalistes de Moscou .
use
The Persian oak is often used economically.
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. 502.
Individual evidence
- ↑ German name after Roloff et al .: Flora der Gehölze , p. 502
- ↑ a b c Roloff et al .: Flora of the Woods , p. 502
- ↑ a b Quercus macranthera. In: Germplasm Resources Information Network (GRIN). United States Department of Agriculture, accessed December 30, 2011 .
