Prunus maximowiczii
Prunus maximowiczii
Prunus maximowiczii is a species of the genus Prunus.
Description
Vegetative characteristics
Prunus maximowiczii a small tree, the plant height is reached up to 7 meters. Its branches are spread. The bark is dark gray. The bark of the branches is initially tinted brown and densely shaggy hairy, later greyish - brown. The winter buds are long - ovate and pressed hairy fluffy.
The change-constant leaves are divided into petiole and leaf blade. The densely villous hairy petiole has a length of 5 to 15 millimeters. The simple leaf blade is sharpened with a length of 3-9 cm and a width of 1.5 to 4 cm obovate to obovate -elliptic and suddenly. The leaf margin is coarsely doubly serrate. There are six to nine lateral nerves on each side of the main nerve, along which often on the upper leaf surface a pressed- coat is available. Otherwise, the leaf blade is bare. The two lineal Stipules with dark - purple glands at the edges fall off shortly after the flowering period.
Generative features
The spatulate to oblong bud scales are 10 to 15 millimeters long, 5-6 mm wide, possess tiny, dark red glands on the edge and fall off shortly after the flowering period. In an upright, schirmtraubigen inflorescence with hairy inflorescence axis are five to ten flowers together. The sheet-like foliage, green, egg-shaped with 5-7 × 5-4 cm high leaves have a sharp - serrate margin. The press tightly, shaggy hairy flower stalk has a length of 5 to 15 millimeters.
The hermaphrodite, radial symmetry, five petals have a diameter of about 1.5 cm and open simultaneously with the unfolding leaves. The outside pressed fluffy hairy flower cup ( hypanthium ) is inverted - cone-shaped, 3-4 mm long and 2.5 to 3 millimeters wide. The five elliptic- triangular sepals are more or less as long as the flower cups and have a serrated edge. The five white petals are elliptical with 6-7 × 5-6 mm. There are about 36 stamens present. The stylus, which is almost as long as the stamens, ending in a capitate stigma.
The black when ripe stone fruit is bitter and ovate with 7-8 × 5-6 mm. The endocarp or stone core is shaped pitted. The fruits ripen in September.
The flowering period extends from May to June.
Occurrence
Prunus maximowiczii occurs in eastern Manchuria, Japan, Korea, and on Sakhalin.
System
Prunus maximowiczii was first described in 1856 by Franz Joseph Ruprecht in the Bulletin de la Classe Physico - Mathématique de l' Academie Imperiale des Sciences de Saint- Pétersbourg, 15, p 131. Synonyms are padellus maximowiczii ( Ruprecht ) Eremin & Yushev, Padus maximowiczii ( Ruprecht ) Sokolov., Cerasus maximowiczii ( Ruprecht ) Komarov.
Use
In Central Europe, Prunus maximowiczii is planted as an ornamental plant because of the bright red and yellow autumn foliage.