Amur cherry
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Amur cherry ( Prunus maackii ) |
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The Amur cherry ( Prunus maackii ) is a species of plant in the genus Prunus within the rose family (Rosaceae). The specific epithet honors the German-Baltic-Russian naturalist Richard Maack .
Dissemination and use
The Amur cherry is native to Korea , Siberia and the Chinese provinces of Heilongjiang , Jilin , Liaoning . In China it thrives in open forests on sunny slopes and forest edges in pine forests and on rivers at altitudes between 800 and 2000 meters.
In the temperate areas, the Amur cherry is used as an ornamental plant for parks and gardens, with the 'Amber Beauty' variety being used.
description
The Amur cherry grows as a tree and reaches heights of 4 to 10 meters. The bark of the branches is blackish to yellowish-brown, smooth with light-colored lenticels ; the bark of the twigs is reddish and hairy at first. The egg-shaped winter buds are smooth with ciliate scales.
The alternate leaves are divided into a petiole and a leaf blade. The 1 to 1.5 cm long petiole is usually hairy, rarely almost hairless. At the upper end of the petiole or on the leaf blade there are two extraflore nectaries . The simple leaf blade is mostly elliptical or rhombic-egg-shaped, rarely oblong-obovate, 4 to 8 cm long, 2.8 to 5 cm wide. The middle nerve is hairy downy. The leaf margin is unevenly and intensely serrated glandular. The linear stipules have glandular margins.
The racemose inflorescence has a length of 5 to 7 cm and contains many flowers. The inflorescence stem is hairy sparsely downy. The hermaphrodite, radially symmetrical , five-fold flower has a diameter of 8 to 10 mm. The flowers are 4 to 6 mm and grow to about 7 mm when they are ripe. The bell-shaped flower cup (hypanthium) is hairy on the outside. The five sepals have a glandular serrated edge. The five white petals are nailed short. There are 25 to 30 stamens present. The upper ovary is hairless. The stylus is slightly shorter than the stamens with a disc-shaped stigma. The flowering period extends from April to May.
The purple-colored, smooth stone fruit is almost spherical with a 5 to 7 mm diameter. The fruits ripen between June and October.
Systematics
Prunus maackii was published in 1857 by Franz Joseph Ruprecht in Bulletin de la Classe Physico-Mathématique de l'Académie Impériale des Sciences de Saint-Pétersbourg , 15, p. 361. Synonyms for Prunus maackii Rupr. are: Padus maackii (Rupr.) Komarov , Cerasus maackii (Rupr.) GVEremin & VSSimagin , Laurocerasus maackii (Rupr.) CKSchneider , Padus maackii f. lanceolata T.T.Yü & TCKu . Prunus maackii belongs to the subgenus Padus in the genus Prunus .
swell
- Gu Cuizhi & Bruce Bartholomew: Padus in der Flora of China , Volume 9, p. 422: Prunus maackii - Online.
Individual evidence
- ↑ Use by Dr. Philipp Schönfeld, Bavarian State Institute for Viticulture and Horticulture. ( Memento from July 12, 2009 in the Internet Archive )
