Quercus macranthera
Persian oak (Quercus macranthera )
The Persian oak (Quercus macranthera ) is a medium sized tree from the kind of oak trees in the family of book -like. The distribution area is located in Turkey, northern Iran and the Caucasus in the southeast.
Description
The Persian oak is one to 20, rarely to 30 m tall tree with high arched crown. The bark is thin and peels off in large sheets. The shoots are hairy thick and strong graufilzig, they begin in the second year to verkahlen. The buds have consistent, thread-like stipule shed. The leaves are 8 to 20 inches long, obovate, with rounded tip and narrowed base. The leaf blade is flat regularly lobed with 7 to 11 rounded, egg-shaped lobes on each side. The lobes in the center of the page are the greatest. There shall be seven to eleven pairs of nerves. The upper leaf surface is dark green and almost hairless, the underside is gray to yellowish tomentose hairs. The fruits are about 2.5 inches long, ovoid - ellipsoid, and half surrounded by a hemispherical cupule with lanceolate, erect or splaying shed.
Distribution and ecology
The distribution area is located in the north of Iran, Turkey, Azerbaijan and Armenia. It grows in steppes and dry forests on rich, dry to fresh, mildly acidic to strongly alkaline, sandy- gravelly or sandy- loamy soils in full sun to light shade locations. The species is sensitive to moisture, warmth, and usually frost hardy.
Systematics and history of research
The Persian oak (Quercus macranthera ) is a species in the genus of oaks (Quercus ) in the beech family ( Fagaceae ). The first description was in 1838 by Friedrich Ernst Ludwig von Fischer and Carl Anton von Meyer in the Bulletin de la Societe Imperiale des Naturalistes de Moscou.
Use
The Persian oak is often used economically.