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https://www.crosswordclues.com/clue/casuarina

Casuarina is a genus of 17 species in the family Casuarinaceae, native to Australasia, the Indian Subcontinent, southeast Asia, and islands of the western Pacific Ocean. It was once treated as the sole genus in the family, but has been split into three genera (see Casuarinaceae). They are evergreen shrubs and trees growing to 35 m tall. The foliag...
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http://en.wikipedia.org/wiki/Casuarina

• (n.) A genus of leafless trees or shrubs, with drooping branchlets of a rushlike appearance, mostly natives of Australia. Some of them are large, producing hard and heavy timber of excellent quality, called beefwood from its color.
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http://thinkexist.com/dictionary/meaning/casuarina/

(from the article `Casuarinales`) the beefwood order of dicotyledonous flowering plants comprising the family Casuarinaceae, with two genera (Casuarina, 30 species; Gymnostoma, 20 ...
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http://www.britannica.com/eb/a-z/c/35
Cas`u·a·ri'na noun [ New Latin , supposed to be named from the resemblance of the twigs to the feathers of the cassowary, of the genus
Casuarius .]
(Botany) A genus of leafless trees or shrubs, with drooping branchlets of a rushlike appearance, mostly natives of Australia. Some of t...
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http://www.encyclo.co.uk/webster/C/34

The Casuarina (Botany-Bay Oak), is the only genus of the family Casuarinaceae (cassowary trees). There are around 30 species mainly native to Australia. They are jointed, leafless trees similar to the Birches, having their male flowers in whorled catkins and their fruits in indurated cones. Some of them produce timber called Beefwood from its colou...
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http://www.probertencyclopaedia.com/browse/BC.HTM

[
n] - any of various trees and shrubs of the genus Casuarina having jointed stems and whorls of scalelike leaves
Found on
http://www.webdictionary.co.uk/definition.php?query=casuarina
noun any of various trees and shrubs of the genus Casuarina having jointed stems and whorls of scalelike leaves; some yield heavy hardwood
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https://www.encyclo.co.uk/local/20974
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