Cornus controversa
Typical growth of a flowering pagoda dogwood (Cornus controversa )
The Pagoda Dogwood (Cornus controversa ), also called Giant Dogwood, is a species of the genus dogwood (Cornus ) within the family of Dogwood ( Cornaceae ). He comes from East Asia and is used as an ornamental plant. Occasionally, the Wechselblättrige dogwood (Cornus alternifolia ) is called Pagoda Dogwood.
Description
The Pagoda Dogwood is a shrub or tree can reach, the plant height of 10 to 15 meters. The canopy is very striking, since the -branching in tiers grows in horizontal layers. The bark is gray and smooth; with increasing age, form fine cracks until the crust breaks up into wide strips. Young twigs are dark red.
The change-constant leaves are colored dark green on top and lighter on the bottom, ovoid and short acuminate at the otherwise dull blade end. The leaves are about 9-13 inches long and 7 inches wide; they each have six to nine distinct, almost parallel leaf veins. The petioles are about 4 inches long. The leaves turn yellow in the fall to crimson before they fall off.
The flowering period begins in May, plants in Central Europe bloom from June to July. The hermaphrodite white flowers are about 1 inch tall; They are available in five to 15 centimeters doldenartigen panicles on a thick, hairy stem. The inflorescences are not surrounded as with many other dogwood species of showy bracts. The flowers are pollinated by insects. The seeds mature in Central Europe from September to October, they are round, about size of a pea and colored bluish- black.
Occurrence
The home of the pagoda dogwood extends from the eastern Himalayas (Nepal, northern India) and China to Korea and Japan.
He is usually found in deciduous forests and manages to grow in shady conditions.
System
The first description was in 1909 by William Botting Hemsley in by David Prain. Botanical Magazine, pp. 135, sub panel 8261 synonyms for Cornus controversa Hemsl. ex Prain are: Bothrocaryum controversum ( Hemsl. ) Pojark, Cornus brachypoda Miq, Cornus controversa var angustifolia Wangerin, Cornus obovata Thunb, Cornus sanguinea Thunb, Swida controversa ( Hemsl. ) Soják ... .. .
Use
The leaves are used in folk medicine among others for pain relief. From the seed oil is extracted.
Ornamental plant
In Central Europe it is sometimes found as an ornamental tree in large parks and botanical gardens. It prefers partial shade location with a damp, cool and lime-free soil.
Some cultivated forms are:
- ' Candle Light ': leaves when they emerge yellow, later turning green
- ' Marginata ': leaves with narrow white and pink colored border
- ' Pagoda ': growth regularly spread branches
- 'Variegata': This variety is often offered about five feet tall, sometimes up to ten meters. The leaves are narrower than in the type, four inches tall and have a wide rahmweißen edge.