Cephalotaxus harringtonii
Japanese Kopfeibe ( Cephalotaxus harringtonia )
The Japanese Kopfeibe or Japanese Pflaumeneibe ( Cephalotaxus harringtonia ) is one of eleven species of the genus head yew ( Cephalotaxus ), the only genus of the family head Yews ( Cephalotaxaceae ). In Europe, this type is used as an ornamental plant in parks and gardens, there are also some forms of culture. The species is named after the Earl of Harrington, who they probably planted first in Europe in 1829.
Description
The Japanese Kopfeibe is reached a small evergreen tree or shrub, the plant height up to 10 meters. The gray bark peels off in thin stripes. The branches are green and only later reddish brown. The needles are about 3 cm long and 2-3 mm wide.
It is a dioecious getrenntgeschlechtige ( dioecious ) Art It flowers from March to April and the seeds begin from September of the following year to mature. The seeds are about 2 inches long. The seeds are surrounded by a seed coat ( aril ). The aril is light brown ( hazel ), it has an oval shape and is about 3 inches long.
Dissemination
This species is native to Japan. Your area extends from Kyushu to Hokkaido, with an emphasis in Hondo.
System
1839 var today than nominate harringtonia respected plant by the English gardener Joseph Knight so that the genus of yew (Taxus ) was (published in the factory Pinetum woburnense of the English gardener James Forbes) under the taxon Taxus harringtonia described and assigned. The currently valid description by the German botanist Karl Heinrich Emil Koch under the taxon Cephalotaxus harringtonia was published Dendrology in his work in 1873.
Other synonyms are drupacea C., C. pedunculata, C. drupacea var pedunculata, C. drupacea var harringtonii.
We distinguish up to four varieties depending on the author:
- Cephalotaxus harringtonia var drupacea
- Cephalotaxus harringtonia var harringtonia
- Cephalotaxus koreana var harringtonia
- Cephalotaxus harringtonia var nana: she has shorter needles and smaller fruit than the type. She prefers steep sites.
Cultivated forms
- 'Fastigiata': Tight upright, columnar growth is about 2 feet tall and about 60 to 90 inches wide. The needle leaves are bent back and are spiral.
- 'Nana': A lasting less than 1 meter form with low- lying growth; the ground lying branches can take root.
- ' Prostrate ': With polsterförmigem stature, about 60 inches high and is 1.2 meters wide.
Swell
- Christopher J. Earle: Cephalotaxus harringtonia. In: The Gymnosperm Database. December 12, 2010, accessed 22 October 2011 (English).