Linden-leaved birch
| Linden-leaved birch | ||||||||||||
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Linden-leaved birch ( Betla maximowicziana ), illustration |
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| Betula maximowicziana | ||||||||||||
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The linden-leaved birch ( Betula maximowicziana ) is a medium-sized deciduous tree from the genus of birch in the birch family (Betulaceae). The distribution area is in Japan and on the South Kuril Islands .
description
The linden-leaved birch is a fast-growing, 20 to 30 meter high tree with a loosely branched, broad crown and initially orange-brown, later gray to whitish orange-colored, thinly rolling bark . The shoots are dark red-brown, hairless and warty. The leaves are broadly ovate, 8 to 16 inches long, pointed with a deep heart-shaped base and a double-sawn edge. The upper side of the leaf is dark green and initially hairy, the underside is covered with armpit whiskers. 10 to 12 pairs of nerves are formed per leaf, which slightly protrude beyond the leaf margin. The petiole is 1.5 to 4.4 inches long. In autumn the leaves turn golden yellow, the veins often turn red. As female inflorescences , groups of three to four standing, 5 to 7 centimeters long, oblong-cylindrical catkins are formed. The middle lobes of the fruit scales are longer than the side lobes.
The number of chromosomes is 2n = 28.
Distribution and ecology
The distribution area is on the Japanese islands of Hokkaidō and Honshū and on the southern Kuril Islands , which belong to Russia. There it grows in cool, moist forests on fresh to moist, well-drained, moderately nutrient-rich, acidic to neutral, sandy or gravelly humus soils in sunny to light-shady locations. The species is mostly frost hardy and avoids calcareous soils.
Systematics and research history
The Hárslevelű birch ( Betula maximowicziana rule ) is a kind from the kind of birch ( Betula ) in the family of the birch family (Betulaceae). It was first described in 1868 by Eduard August von Regel in De Candolles: Prodromus Systematis Naturalis Regni Vegetabilis . A synonym is Betula maximowiczii rule non Rupr.
use
The species is often used as an ornamental plant because of its impressive autumn colors .
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. 139.
Individual evidence
- ↑ German name according to Roloff et al .: Flora der Gehölze , p. 139
- ↑ a b c Roloff et al .: Flora of the Woods , p. 139
- ↑ Betula maximowicziana at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
- ↑ a b Betula maximowicziana. In: Germplasm Resources Information Network (GRIN). United States Department of Agriculture, accessed December 28, 2011 .
