Chinese balsam poplar

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Chinese balsam poplar
Systematics
Rosids
Eurosiden I
Order : Malpighiales (Malpighiales)
Family : Willow family (Salicaceae)
Genre : Poplars ( Populus )
Type : Chinese balsam poplar
Scientific name
Populus szechuanica
CK cutting

The Chinese balsam poplar ( Populus szechuanica ) is a large deciduous tree from the genus poplar in the willow family . Their natural range is in the temperate zone in China .

description

The Chinese balsam poplar is a tree up to 40 meters high with a round crown and a gray-white trunk bark that is cracked towards the base . Young twigs are more or less angular and bare. The buds are purple, glabrous and sticky. The leaves have a 2 to 7 centimeter long, red stem. The leaf blades are ovate to elongated ovate, on sturdy shoots 18 to 30, otherwise 8 to 10 centimeters long and 5 to 15 centimeters wide, pointed with a rounded to slightly heart-shaped base and a glandular sawn leaf margin. The upper side of the leaf is dark green, the underside pale green and hairy on the veins. The leaves are reddish when budding, the leaf veins and the stem remain red. The flowers are like all poplars dioecious distributed. The female kittens are up to 16 centimeters long when the fruit is ripe. The capsule fruits are egg-shaped, 7 to 9 millimeters long and glabrous. The species blooms from April to May, the fruits ripen from May to June.

Distribution and location

The natural range is in the temperate zone of China in the provinces of Gansu , Shaanxi , Sichuan , Xizang and Yunnan . There it grows in floodplains and riparian forests at heights of 1100 to 4600 meters on moderately dry, fresh to moist, neutral to alkaline, very nutrient-rich, sandy-gravelly soils in sunny locations. The species loves warmth and is usually frost hardy.

Systematics

The Chinese balsam poplar ( Populus szechuanica ) is a kind from the kind of poplars ( Populus ) in the family of the pasture plants (Salicaceae). It was first described by the German botanist Camillo Karl Schneider in 1916 .

There are two varieties :

  • Populus szechuanica var. Szechuanica with bare leaves and buds.
  • Populus szechuanica var. Tibetica C.K. Cutting. with hairy buds and petioles and initially hairy, later often bare leaf blades. The variety grows at altitudes of 2000 to 4500 meters in the provinces of Sichuan and Xizang

use

The wood of the Chinese balsam poplar 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 , pp. 466-467.
  • Wu Zheng-yi, Peter H. Raven (Ed.): Flora of China . Volume 4: Cycadaceae through Fagaceae . Science Press / Missouri Botanical Garden Press, Beijing / St. Louis 1999, ISBN 0-915279-70-3 , pp. 156 (English).

Individual evidence

  1. ↑ German name after Roloff et al .: Flora der Gehölze , p. 466
  2. ↑ Roloff et al .: Flora of the Woods , p. 466
  3. ^ A b c d Liguo Fu, Nan Li, Thomas S. Elias, Robert R. Mill: Populus szechuanica . In: Wu Zheng-yi, Peter H. Raven (Ed.): Flora of China . Volume 4: Cycadaceae through Fagaceae . Science Press / Missouri Botanical Garden Press, Beijing / St. Louis 1999, ISBN 0-915279-70-3 , pp. 156 (English).
  4. ↑ a b Populus szechuanica. In: Germplasm Resources Information Network (GRIN). United States Department of Agriculture, accessed January 15, 2012 .
  5. ↑ a b Roloff et al .: Flora of the Woods , p. 467
  6. ^ Sargent: Plantae Wilsonianae , Cambridge, MA quoted from Populus szechuanica. In: Germplasm Resources Information Network (GRIN). United States Department of Agriculture, accessed January 15, 2012 .
  7. ^ Liguo Fu, Nan Li, Thomas S. Elias, Robert R. Mill: Populus szechuanica var. Szechuanica . In: Wu Zheng-yi, Peter H. Raven (Ed.): Flora of China . Volume 4: Cycadaceae through Fagaceae . Science Press / Missouri Botanical Garden Press, Beijing / St. Louis 1999, ISBN 0-915279-70-3 , pp. 156 (English).
  8. ^ Liguo Fu, Nan Li, Thomas S. Elias, Robert R. Mill: Populus szechuanica var. Tibetica . In: Wu Zheng-yi, Peter H. Raven (Ed.): Flora of China . Volume 4: Cycadaceae through Fagaceae . Science Press / Missouri Botanical Garden Press, Beijing / St. Louis 1999, ISBN 0-915279-70-3 , pp. 156 (English).