Ornamental cherry-birch
| Ornamental cherry-birch | ||||||||||||
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Ornamental cherry-birch in the Arnold Arboretum |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Betula grossa | ||||||||||||
| Siebold & Zucc. |
The cherry trees birch ( Betula Grossa ) or Grosser birch is a medium sized deciduous tree of the genus Birken in the family of birch family (Betulaceae). The distribution area includes some islands of Japan.
description
The ornamental cherry birch is a tree up to 25 meters high with black-gray, smooth bark that cracks on older trunks. Young shoots are yellow-brown and somewhat hairy and later turn red-brown and glabrous. The leaves are ovate, 5 to 9 centimeters long, pointed with a slightly heart-shaped base and a roughly double-sawn edge. The upper side of the leaf is dark green and hairy, the underside is covered with glands. 8 to 14 pairs of nerves are formed per leaf, which are silky hairy on the underside of the leaf. The petiole is 1 to 2 inches long. As female inflorescences 2 centimeters long, upright, cylindrical-egg-shaped catkins are formed. The fruit scales have short rounded lobes, the middle lobes are twice as long as the side lobes.
The number of chromosomes is 2n = 84.
Distribution and ecology
The distribution area is on the Japanese islands of Honshū , Kyushu and Shikoku . There it grows in species-rich forests on fresh to moist, nutrient-rich, weakly acidic to alkaline, mostly loamy soils in sunny to light-shaded locations. The species loves warmth and is usually frost hardy.
Systematics and research history
The cherry trees birch ( Betula costata ) is a kind of the genus of birch ( Betula ) in the family of birch family (Betulaceae). It was first described in 1846 by Philipp Franz von Siebold and Joseph Gerhard Zuccarini in the treatises of the Mathematical-Physical Class of the Royal Bavarian Academy of Sciences . Betula ulmifolia Siebold & Zucc is a synonym .
use
The species is rarely used.
proof
literature
- Andreas Roloff , Andreas Bärtels: Flora of the woods. Purpose, properties and use. With a winter key from Bernd Schulz. 3rd, corrected edition. Eugen Ulmer, Stuttgart (Hohenheim) 2008, ISBN 978-3-8001-5614-6 , p. 138.
Individual evidence
- ↑ a b German names after Roloff et al .: Flora der Gehölze , p. 138
- ↑ a b c Roloff et al .: Flora of the Woods , p. 138
- ↑ Betula grossa at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
- ↑ a b Betula grossa. In: Germplasm Resources Information Network (GRIN). United States Department of Agriculture, accessed December 28, 2011 .
