Aspidosperma quebracho-blanco: Difference between revisions
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'''Quebracho blanco''' ([[syn.]] ''Macaglia quebracho-blanco'' ([[Schltdl.]]) [[A.Lyons]]) is a [[South America]]n [[tree]] [[species]], which is found in the northern regions of [[Argentina]]. It must not be confused with other species also known as ''[[Quebracho tree|quebracho]]'', but belonging to the [[genus]] ''[[Schinopsis]]''. |
'''Quebracho blanco''' ([[syn.]] ''Macaglia quebracho-blanco'' ([[Schltdl.]]) [[A.Lyons]]), called '''kebrako''' or '''white quebracho''',<ref>{{cite web |url=http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?5585 |title=USDA GRIN Taxonomy}}</ref> is a [[South America]]n [[tree]] [[species]], which is found in the northern regions of [[Argentina]]. It must not be confused with other species also known as ''[[Quebracho tree|quebracho]]'', but belonging to the [[genus]] ''[[Schinopsis]]''. |
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==Growth== |
==Growth== |
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Revision as of 17:07, 12 February 2014
| Quebracho blanco | |
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| Species: | A. quebracho-blanco
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| Aspidosperma quebracho-blanco | |
Quebracho blanco (syn. Macaglia quebracho-blanco (Schltdl.) A.Lyons), called kebrako or white quebracho,[1] is a South American tree species, which is found in the northern regions of Argentina. It must not be confused with other species also known as quebracho, but belonging to the genus Schinopsis.
Growth
Quebracho blanco wood is uniformly yellow-ochre, without differences between hardwood and sapwood. It is quite heavy (relative density = 0.885 g/cm³) and hard, and responds well to bending and shock. Upon drying it tends to collapse, producing deformations and cracks, so the drying process is slow; the wood must be treated with fungicides. It is easy to work and has many uses in carpentry (carts, wheels, floors, shoes, tool handles, furniture); it is also good for chess pieces, skis, etc. Preserved with creosote it can be used outdoors. In some places it is widely used as coal, since it does not produce sparks or large amounts of ash, and it burns strong and slowly.
Other chemicals
Quebrachitol is a cyclitol, a cyclic polyol found in the bark of A. quebracho.[2]
Cultivars
References
- ^ "USDA GRIN Taxonomy".
- ^ Quebrachitol. Jan van Alphen, Ind. Eng. Chem., 1951, 43 (1), pp 141–145, doi:10.1021/ie50493a041
- ^ Govaerts, R., Michielsen, K. & Jablonski, E. (2011). Untraced Weeping Broadleaf cultivars: an overview. Belgische Dendrologie Belge 2009: 19-30.
- Libro del Árbol, Tome II, edited by Celulosa Argentina S. A., Buenos Aires, Argentina, October 1975.
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