Cotoneaster dammeri
Carpet cotoneaster ( Cotoneaster dammeri )
The carpet cotoneaster ( Cotoneaster dammeri ) is an evergreen, creeping shrub from the group of pome fruit crops ( Pyrinae ). The natural range of the species is in China. It is often used as an ornamental plant.
Description
The carpet Cotoneaster is an evergreen shrub with long creeping trellis resting on the ground and rooting branches. The branches are dark gray-brown to dark gray, terete, initially pressed, hairy yellowish and later glabrous. The leaves are arranged in two rows. The petiole is 2-3 mm long, hairy at first also yellowish and later glabrous. The stipules are lanceolate to linear - lanceolate, 2-4 mm long, slightly pubescent and generally fail early on. The leaf blade is simple, oval, oblong -ovate or obovate, 1-2 rarely to 3 inches long and 0.7 to 2.2 centimeters wide, thick, leathery, wedge-shaped, blunt, ausgerandeter or more or less pointed tip and wide or rounded base. There are 4 to 6 pairs of nerves formed. The Leaves are glossy dark green above, glabrous with sunken veins; the underside is lighter than the top, slightly frosted, initially hairy pressed and later glabrous with very prominent veins.
The flowers are usually solitary, rarely in 1 centimeter by measuring umbrella- from 2-3 flowers. The bracts are linear - lanceolate, hairy 2 to 3 millimeters long and fine. The flower stems are finely hairy and 4-6 millimeters long at the variety radicans to 15 millimeters. The flower cup is bell-shaped and slightly pubescent outside. The sepals are triangular, pointed, 1.5 to 2 millimeters long and about as wide. The petals are horizontal. They are white, bald, rounded to broadly ovate, 4-5 mm wide, with a blunt tip and just nailed basis. The 20 stamens are unequal in length and have reddish dust bag. The apex of the ovary is hairy. The three most often four to five free-standing pen are almost as long as the stamens. The fruits are bright red, bald, round, with a diameter of 6-7 mm. The fruit three most four or five nuclei are formed rare. The carpet cotoneaster flowers from May to June and the fruits ripen from September to October.
The chromosome number is 2n = 24
Occurrence and habitat requirements
The natural range is located in the Chinese provinces of Gansu, Guizhou, Hubei, Sichuan, Xizang and Yunnan. In Europe the species is wild. The carpet cotoneaster grows in cool moist mountain regions in 1300-4100 meters on moderately dry to moderately moist, slightly acidic to alkaline, not too fertile soil in full sun to light shade locations. The species is usually frost hardy.
System
The carpet cotoneaster ( Cotoneaster dammeri ) is a species in the genus Zwergmispeln ( Cotoneaster ). It is assigned in the rose family ( Rosaceae ) of the subfamily Spiraeoideae, Tribe Pyreae the subtribes of pome fruit crops ( Pyrinae ). The species was described in 1906 by Camillo Karl Schneider in Illustrated Handbook of Hardwood customer first scientifically. The genus name Cotoneaster is derived from the Latin " malum cotoneum " for the quince ( Cydonia oblonga ). The ending " aster " is a Vergröberungsform for groups of plants that are considered in comparison with similar groups as inferior. The specific epithet dammeri commemorates the botanist Udo Dammer.
There are two varieties:
- Cotoneaster dammeri var dammeri with 2 to 3 millimeters long petioles, ovate to oblong- oval leaf blades and 4 to 6 mm long pedicles. It occurs at altitudes of 1300-2600 meters.
- Cotoneaster radicans var dammeri ( Dammer ex CK Schneider) CK Schneider from 6 to 10 millimeters long petioles, obovate leaf blades and 10 to 15 millimeters long pedicles. It occurs at altitudes of 2000-4100 meters. The variety is also regarded as a separate species Cotoneaster radicans.
Use
The carpet cotoneaster is very common but used because of its impressive ornamental tree fruits as well as bee pasture.
There are numerous varieties distinguished including:
- 'Major' with larger, 2.5 to 3.5 cm long leaf blades which can become discolored orange-red in autumn. The variety is very often planted.
- ' Mooncreepers ' with particularly flat growth and small fresh green leaves and numerous small fruits.
- ' Thiensen ' is similar to the cultivar 'Major' is only 15 inches high with 4 to 5 inches long leaves. The species is resident against fire blight.