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Aspidosperma quebracho-blanco , commonly known as Quebracho blanco , kebrako , or white quebracho ,[3] is a South American tree species , native to Brazil , northern Argentina , Bolivia , Paraguay , and Uruguay .[2] It must not be confused with other species also known as quebracho , but belonging to the genus Schinopsis .[4]
Description [ edit ]
Aspidosperma quebracho-blanco is an evergreen tree. It reaches 20 to 30 meters in height in the Humid Chaco , and 8 to 12 meters in the Dry Chaco . The foliage is sclerophyllous .[1]
Habitat and range [ edit ]
Aspidosperma quebracho-blanco is generally found in dry deciduous forests, where it grows on clay soils. It is most common in the Gran Chaco , Humid Chaco , Argentine Espinal , and Bolivian montane dry forests ecoregions of Paraguay, Argentina, Bolivia, and Brazil. Its range extends to adjacent ecoregions, including the Uruguayan savanna , Paraná flooded savanna , Southern Cone Mesopotamian savanna , Southern Andean Yungas , Cerrado , Pantanal , Central Andean puna , Chiquitano dry forests , and Beni savanna .[1]
Aspidosperma quebracho-blanco
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 charcoal , since it does not produce sparks or large amounts of ash, and it burns strong and slowly.[5]
Other chemicals [ edit ]
Quebrachitol is a cyclitol , a cyclic polyol found in the bark of A. quebracho .[6] Quebrachine is a chemical synonym for yohimbine since it was first isolated from the bark of A. quebracho-blanco .
Cultivars [ edit ]
References [ edit ]
^ "Aspidosperma quebracho-blanco " . Germplasm Resources Information Network . Agricultural Research Service , United States Department of Agriculture . Retrieved 24 December 2017 .
^ Morales, J.F. (2010). La familia Apocynaceae s. str. (Apocynoideae, Rauvofioideae) en Uruguay. Darwiniana 48: 68-86.
^ Libro del Árbol , Tome II, edited by Celulosa Argentina S. A., Buenos Aires, Argentina, October 1975.
^ 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 Archived March 22, 2012, at the Wayback Machine 2009: 19-30.
Aspidosperma quebracho-blanco
R e t r i e v e d f r o m " https://en.wikipedia.org/w/index.php?title=Aspidosperma_quebracho-blanco&oldid=1080737235 "
C a t e g o r i e s :
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● T h i s p a g e w a s l a s t e d i t e d o n 3 A p r i l 2 0 2 2 , a t 0 4 : 1 0 ( U T C ) .
● T e x t i s a v a i l a b l e u n d e r t h e C r e a t i v e C o m m o n s A t t r i b u t i o n - S h a r e A l i k e L i c e n s e 4 . 0 ;
a d d i t i o n a l t e r m s m a y a p p l y . B y u s i n g t h i s s i t e , y o u a g r e e t o t h e T e r m s o f U s e a n d P r i v a c y P o l i c y . W i k i p e d i a ® i s a r e g i s t e r e d t r a d e m a r k o f t h e W i k i m e d i a F o u n d a t i o n , I n c . , a n o n - p r o f i t o r g a n i z a t i o n .
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