
1) Alamo 2) Poplar
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https://www.crosswordclues.com/clue/cottonwood

1) Certain poplar 2) City in the USA 3) City in Arizona 4) City of the US 5) City of the USA 6) City in the US 7) City of the Americas 8) City of North America 9) City in the Americas 10) City of the United States 11) City of Arizona 12) City in North America 13) City in the United States 14) Fast-growing tree
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https://www.crosswordclues.com/clue/cottonwood

• (n.) An American tree of the genus Populus or poplar, having the seeds covered with abundant cottonlike hairs; esp., the P. monilifera and P. angustifolia of the Western United States.
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http://thinkexist.com/dictionary/meaning/cottonwood/

several fast-growing trees of North America, members of the genus Populus, in the family Salicaceae, with triangular, toothed leaves and cottony ...
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http://www.britannica.com/eb/a-z/c/148

(Populus) Populus is a large group of deciduous (leaf-losing) trees that can attain great heights. These trees, commonly known as Aspen, Poplar and Cottonwood trees, are found in Europe, Asia and North America. Some are found wild in other regions, one being a native of tropical Africa. It is difficult to say how many wild kinds there are, because ...
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http://www.encyclo.co.uk/local/10004
Cot'ton·wood` (-wod`)
noun (Botany) An American tree of the genus
Populus or poplar, having the seeds covered with abundant cottonlike hairs; esp., the
P. monilifera and
P. angustifolia of the Western United States.
Found on
http://www.encyclo.co.uk/webster/C/169

[
n] - any of several North American trees of the genus Populus having a tuft of cottony hairs on the seed
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http://www.webdictionary.co.uk/definition.php?query=cottonwood
noun any of several North American trees of the genus Populus having a tuft of cottony hairs on the seed
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https://www.encyclo.co.uk/local/20974

Any of several North American poplar trees with seeds topped by a thick tuft of silky hairs. The eastern cottonwood (
Populus deltoides), growing to 30 m/100 ft, is native to the eastern USA. The name `cottonwood` is also given to the downy-leaved Australian tree
Bedfordia salaoina. (True cotto...
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https://www.encyclo.co.uk/local/21221

any of several American poplars, as Populus deltoides, having toothed, triangular leaves and cottonlike tufts on the seeds.
Found on
https://www.infoplease.com/dictionary/cottonwood
No exact match found.