Large-toothed poplar

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Large-toothed poplar
Branch with leaves

Branch with leaves

Systematics
Rosids
Eurosiden I
Order : Malpighiales (Malpighiales)
Family : Willow family (Salicaceae)
Genre : Poplars ( Populus )
Type : Large-toothed poplar
Scientific name
Populus grandidentata
Michx.

The large-toothed poplar ( Populus grandidentata ) is a deciduous tree from the poplar genus in the willow family. Their natural range is in eastern Canada and the USA.

description

single sheet

The large-toothed poplar is a medium-sized, up to 35 meters high, initially fast-growing deciduous tree that can reach a diameter of 1.4 meters at chest height . The trunk is light gray, smooth in young trees and furrowed in older trees. The twigs are quite thick, initially gray-tomentose hairs, later shiny brown, the buds are also gray-tomentose hairs. The leaves differ depending on whether they are on short or long shoots. Leaves on long shoots have an egg-shaped, 7 to 10 centimeters long, pointed blade with a truncated to broadly wedge-shaped base and a roughly dentate, dentate leaf margin. The upper side of the leaf is dark green, the underside initially gray-tomentose, later glabrous and blue-green. Leaves on short shoots are elliptical, sharply serrated with a long, thin, 2.5 to 6 centimeter long stem. The flowers are like all poplars dioecious distributed. The male flowers are arranged in catkins 3.5 to 6 centimeters long . The bracts are lobed and long fringed. Male flowers have six to twelve stamens , female flowers have four styles . The fruits are arranged in catkins 6 to 12 centimeters long. The species blooms from March to May, the fruits ripen from May to June.

The number of chromosomes is .

Distribution and location

The natural range is in North America in the east of Canada in the provinces of New Brunswick , Nova Scotia , Ontario , Prince Edward Island , Québec and in the southeast of Manitoba . In the United States, the species is found in the northeast, north-central, and southeastern states. There it grows in species-poor forests from above sea level up to 1000 meters on moderately dry to fresh, sandy, acidic to neutral soils in sunny locations. The species is frost hardy.

Systematics and research history

The Populus Grandidentata ( Populus grandidentata ) is a kind of the genus of poplar ( Populus ) in the family of the pasture plants (Salicaceae). It was first described by André Michaux in 1803 . Some authors call it Populus tremula subsp. grandidentata (Michx.) Á. Löve & D. Löve regarded as a subspecies of the trembling poplar ( Populus tremula ).

use

The wood of the large-toothed poplar is very rarely used economically.

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. 464.
  • Flora of North America Editorial Committee (Ed.): Flora of North America North of Mexico . Volume 7: Magnoliophyta: Salicaceae to Brassicaceae . Oxford University Press, New York / Oxford a. a. 2010, ISBN 978-0-19-531822-7 , pp. 20 (English, limited preview in Google Book Search).

Individual evidence

  1. ↑ German name after Roloff et al .: Flora der Gehölze , p. 464
  2. ↑ a b c Roloff et al .: Flora of the Woods , p. 464
  3. ↑ a b c Populus grandidentata. In: Flora of North America Vol. 7 , March 14, 2010, p. 20 , accessed on January 14, 2012 .
  4. ↑ a b Populus grandidentata. In: Germplasm Resources Information Network (GRIN). United States Department of Agriculture, accessed January 14, 2012 .
  5. ↑ Michaux: Flora Boreali-Americana , 1803, quoted from Populus grandidentata. In: Germplasm Resources Information Network (GRIN). United States Department of Agriculture, accessed January 14, 2012 .
  6. ↑ Populus tremula subsp. grandidentata. In: The Plant List. Retrieved January 14, 2012 .

Web links

Commons : Large-toothed Poplar ( Populus grandidentata )  - Collection of images, videos, and audio files