Aspen-shaped poplar [2] ( lat. Pópulus tremuloídes ) is a species of dicotyledonous flowering plants included in the genus Poplar ( Populus ) of the Willow family ( Salicaceae ).
| Aspen-shaped poplar | |||||||||||||||||||||
 | |||||||||||||||||||||
| Scientific classification | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| |||||||||||||||||||||
| International scientific name | |||||||||||||||||||||
Populus tremuloides Michx. , 1803 | |||||||||||||||||||||
| Area | |||||||||||||||||||||
| |||||||||||||||||||||
Content
Botanical Description
Aspen-shaped poplar - deciduous tree, often reaching 35 m in height. The bark of the trunk in the lower part is dark gray, with shallow grooves, above it is smooth, greenish, yellowish or gray. Twigs are red-brown, turning gray after three years.
The leaves are rounded to ovate, usually 3–7 cm in diameter, with a wedge-shaped or heart-shaped base. The edge of the leaf blade is almost whole or finely serrated. The upper surface of the leaf is dark green, the bottom is bare, light green bluish. Petioles up to 6 cm long.
Earrings consist of 50–65 (rarely up to 130) flowers. Flowers with 6-12 stamens with blunted anthers and 2 filiform pestles . The ovary is two-rooted.
The fruit is a capsule of narrow egg shape, with 6-18 seeds .
The number of chromosomes is 2n = 38, 57, 76.
Range
Aspen-shaped poplar is the most widespread tree in North America. Its range extends from Newfoundland and Labrador and southern Alaska in the north to northern Mexico in the south.
Used for landscaping in the republics of the USSR (in particular in Ukraine).
Taxonomy
| 39 more families (according to APG III System ) | about 40 more species | ||||||||||||
| order Malpigh | clan Poplar | ||||||||||||
| Department of Flowering, or Angiosperms | family willow | view Poplar aspen-shaped | |||||||||||
| another 58 orders of flowering plants ( APG III System ) | another 54 genera | ||||||||||||
Hybrids
- Populus × heimburgeri B. Boivin , 1966 [ Populus tremuloides × Populus grandidentata ]
- Populus × smithii B. Boivin, 1966 [ Populus tremuloides × Populus alba ]
- Populus × wettsteinii Hämet-Ahti , 1989 [ Populus tremuloides × Populus tremula ]
Interesting Facts
The oldest plant on the planet is possibly a clonal colony of aspen-shaped poplars, called the Pando Forest, or Pando Grove. Pando is considered a single living organism based on identical genetic markers and a common root system. The clonal colony covers an area of 43 hectares, the weight of the plant is estimated at 6000 tons, which makes it the heaviest known organism. The age of the colony is estimated at 80 thousand years [3] [4] .
Synonyms
Populus tremuloides f. pendula ( Tausch ) Scheele , 1903
- Populus benzoifera var. pendula Tausch, 1838
- Populus tremuloides var. pendula (Tausch) H.Jaeger , 1884
Populus tremuloides f. tremuloides typus
- Populus atheniensis Lodd. ex CFLudw. , 1783, nom. inval.
- Populus aurea tidestr. , 1911
- Populus benzoifera Tausch, 1838
- Populus cercidiphylla Britton , 1908
- Populus cretica Dum. Cours. , 1814, nom. inval.
- Populus graeca CFLudw. ex Aiton , 1789
- Populus laevigata Willd. , 1806
- Populus tremula subsp. tremuloides (Michx.) Á.Löve & D.Löve , 1976
- Populus tremuloides var. aurea (Tidestr.) Daniels , 1911
- Populus tremuloides var. cercidiphylla (Britton) Sudw. , 1927
- Populus tremuloides var. vancouveriana ( Trel. ) Sarg. , 1919
- Populus tremuliformis GBEmerson , 1846, nom. superfl.
- Populus trepida Willd., 1806
- Populus vancouveriana Trel., 1915
- Tremula trepida (Willd.) Raf. ex BDJacks. , 1896, nom. inval.
Notes
- ↑ For the conventionality of specifying the class of dicotyledons as a superior taxon for the plant group described in this article, see the APG Systems section of the Dicotyledonous article .
- ↑ World Wood Species / Kalutsky, K. K. .. - M .: Timber Industry, 1982. - T. 2. - P. 145, 146.
- ↑ Jennifer DeWoody, Carol A. Rowe, Valerie D. Hipkins, and Karen E. Mock. “Pando” Lives: Molecular Genetic Evidence of a Giant Aspen Clone in Central Utah // Western North American Naturalist. - 2008. - No. 68 (4) . - S. 493-497 .
- ↑ Michael Grant. Case Study: The Glorious, Golden, and Gigantic Quaking Aspen . Date of treatment January 14, 2017.
Literature
- Eckenwalder, JE 8. Populus tremuloides Michaux // Flora of North America. - 2010. - P. 22. - 832 p. - ISBN 0-19531-822-6 .