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Poplar
*** Shopping-Tip: Poplar
{{otheruses1|woody plants of the genus '''Populus'''}}
{{Taxobox
| color = lightgreen
| name = Poplar, Aspen, Cottonwood
| image = Populus-trichocarpa.JPG
| image_width = 250px
| image_caption = Western Balsam Poplar foliage
| regnum =
Plantae
| divisio =
Flowering plant Magnoliophyta
| classis =
Dicotyledon Magnoliopsida
| ordo =
Malpighiales
| familia =
Salicaceae
| genus = '''''Populus'''''
| genus_authority =
Carolus Linnaeus L.
| subdivision_ranks = Sections
| subdivision =
Sect. ''
Aspen Populus''
Sect. ''
Cottonwood Aegiros''
Sect. ''
Balsam poplar Tacamahaca''
Sect. ''
Necklace poplar Leucoides''
Sect. ''
subtropical poplars Turanga''
}}
'''''Populus''''' is a genus of trees which includes the cottonwoods, poplars, and aspens, all of which are sometimes termed '''poplars''' (in some areas "popple").
Poplars are
deciduous, and turn bright gold to yellow before their
Leaf leaves fall. The leaves of many poplars, including the cottonwoods and aspens (but not the balsam poplars), have laterally-flattened stems, so that breezes easily cause the leaves to wobble back and forth, giving the whole tree a "twinkling" appearance in a breeze.
Like willows, many poplars have very strong and invasive root systems, so they must not be planted too close to houses or water pipes as they will crack walls and pipes in their search for moisture.
Poplars of the cottonwood section are often wetlands or
riparian trees. The aspens are among the most important
boreal broadleaf trees.
Fast-growing
hybrid poplars are grown on
plantations in many areas for
pulpwood and used for the manufacture of
paper. Poplar is also sold as inexpensive hardwood
timber, used for
pallets and cheap
plywood; more specialised uses include
matches and the boxes in which
camembert cheese is sold. The wood is generally white, often with a slightly yellowish cast.
Poplars and aspens are important food plants for the
larvae of a large number of
Lepidoptera species - see
list of Lepidoptera which feed on Poplars.
Classification
*'''''Populus'' section ''Populus'' -
aspens and white poplar.''' Circumpolar subarctic and cool temperate, and mountains further south (white poplar warm temperate)
**''Populus tremula'' - Common Aspen, Trembling Aspen or Eurasian Aspen. Europe, northern Asia.
**''Populus tremuloides'' - Quaking Aspen or Trembling Aspen. North America.
**''Populus grandidentata'' - Bigtooth Aspen. Eastern North America.
**''Populus adenopoda'' - Chinese Aspen. Eastern Asia.
**''Populus sieboldii'' - Japanese Aspen. Eastern Asia.
**''Populus alba'' -
White Poplar. Southern Europe to central Asia.
***''Populus x canescens'' (''P. alba x P. tremula'') -
White Poplar Grey Poplar
Image:poplartree.jpg frame|right|A poplar in autumn colours
*'''''Populus'' section ''Aegiros'' - black poplars or
cottonwoods.''' North America, Europe, western Asia; temperate
**''Populus nigra'' -
Black Poplar. Europe.
***''Populus x canadensis'' (''P. nigra x P. deltoides'') -
Black Poplar Hybrid Black Poplar
**''Populus deltoides'' - Eastern Cottonwood. Eastern North America.
**''Populus fremontii'' - Fremont Cottonwood. Western North America.
*'''''Populus'' section ''Tacamahaca'' -
balsam poplars.''' North America, Asia; cool temperate
**''Populus angustifolia'' - Willow-leaved Poplar or Narrowleaf Cottonwood. Central North America.
**''Populus balsamifera'' - Ontario Balsam Poplar. Northern North America.
**''Populus trichocarpa'' - Western Balsam Poplar or Black Cottonwood. Western North America.
**''Populus laurifolia'' - Laurel-leaf Poplar. Central Asia.
**''Populus simonii'' - Simon's Poplar. Northeast Asia.
**''Populus maximowiczii'' - Maximowicz' Poplar. Northeast Asia.
*'''''Populus'' section ''Leucoides'' -
necklace poplars or bigleaf poplars.''' Eastern North America, eastern Asia; warm temperate
**''Populus heterophylla'' - Swamp Cottonwood. Southeastern North America.
**''Populus lasiocarpa'' - Chinese Necklace Poplar. Eastern Asia.
**''Populus wilsonii'' - Wilson's Poplar. Eastern Asia.
*'''''Populus'' section ''Turanga'' - subtropical poplars.''' Southwest Asia, east Africa; subtropical to tropical
**''Populus euphratica'' - Euphrates Poplar. Southwest Asia.
**''Populus ilicifolia'' - Tana River Poplar. East Africa.
{{Commons|Populus}}
Category:Salicaceae
Category:Trees
ar:Øور
bg:Топола
da:Poppel
de:Pappeln
es:Ã?lamo
eo:Poploj
fr:Peuplier
ko:사시나무�
it:Populus
lt:Tuopa
nl:Populier
ja:�プラ
pl:Topola
pt:Choupo
fi:Populus
sv:Popplar
tr:Kavak (bitki)
uk:ТополÑ?
zh:�属
*** Shopping-Tip: Poplar
