A species of trees of the genus Maple of the Sapindaceae family.
A tree up to 15 m in height with a grayish-brown bark of the trunk and branches.
Leaves 5-lobed, dense, dark green above, glossy; The 3 upper lobes are almost equal, the lower ones are smaller. The indentations between the lobes reach half the length of the leaf.
In June, along with leaves, small yellowish flowers appear in slightly drooping glabrous panicles.In September, lionfish ripen up to 4.5 cm in length, directed almost parallel and often overlapping with yellowish-brown wings on top of each other.
Better to plant before winter.
When sowing in spring, the seeds need stratification at 0-3 ° for 2-3 months. At 5-7 °, its duration increases.
Stratification at 0-3 ° can be reduced to 1.5-2.5 months if the seeds are then germinated at 10 °.
solated embryos start growing slowly. Kinetin treatment stimulates the growth of the embryo (50 mg / l) and seeds without the pericarp (500 mg / l). Even better, the seeds are treated with kinetin, and then with thiourea (1%) - after that for 2-3 weeks in a warm place. The seeds are very sensitive to aeration conditions.