A tree up to 30 m tall occurring in the highlands of the Caucasus and Northern Iran at altitudes of up to 2,500 m. Young specimens have a silvery bark that turns dark grey with advancing age. Branches mostly begin low down. The bark becomes rough and takes on deep grooves: young twigs are covered in thick woolly hair. The leathery obovate leaves are 12 - 22 cm long and 5 - 14 cm wide. They are regularly lobed with 8 - 10 pairs of shallow blunt lobes. They are rough and dark green on the upper side: the underside is grey and felt-like. The acorns are grouped from 1 to 4, are approx. 2.5 cm in size and are half to two-thirds enclosed in the cupule. The cupule is covered with narrow contiguous scales. Q. macranthera is resistant to mildew.
dark brownish-grey, grooved, twigs reddish-brown with soft hairs
Лист
obovate, dark green, 12 - 22 cm
Цветы
gold coloured ♂ catkins, 5 - 8 cm long, May
Плоды
acorns, approx. 2.5 cm, in groups of 1 to 4
Колючки/шипы
None
Ядовитость
неядовитый, обычно
Вид почвы
makes few demands, loamy
Влажность почвы
устойчив к сухим почвам, устойчив к влажным почвам
Мощение
неустойчив к мощению
Зона зимостойкости
6a (-23,3 до -20,6 °C)
Устойчивость к ветру
good
Прочие виды устойчивости
устойчив к морозам, зона 1 - 6, cустойчив к ветру, устойчив к соли для улиц
Применение
промышленные зоны
Форма
штамбовое дерево, многоствольное дерево
Происхождение
northern Iran, Caucasus
штамбовое деревомногоствольное деревоизвестковые почвыглинистые почвысуглинокпесчаные почвынеустойчив к мощениюустойчив к соли для улицустойчив к морозам (зона 1 - 6)устойчив к сухим почвамустойчив к влажным почвамустойчив к ветру1 высота: более 12 метровплотная кроназеленыйжелтыйсреднерастущийнеядовитый (обычно)
Quercus macranthera can eventually reach a height of 20 - 25 (30) m, depending on the site and climate conditions.
Quercus macranthera is среднерастущий and can eventually reach a height of 20 - 25 (30) m, depending on the site and climate conditions.
The right time to plant Quercus macranthera is during the dormancy period. In Western Europe, Quercus macranthera with root balls can generally be planted from mid-November to late April, although this depends strongly on the climatic conditions and the species of tree.