Qualea paraensis Ducke
Other names
| International recognized trade name (ATIBT) | Mandioquera | |
| Français | Gonfolo | |
| Other names | Gronfolo |
Origin
| Geographic Regions | Amazon | |||
| States and Territories | Peru; Costa Rica; N-Brazil (Pará, Amazonas); WC-Brazil (Mato Grosso); Guyana; Ecuador; Venezuela (Amazonas, Bolívar); Colombia (Amazonas, Guainía, Vaupés, Vichada); Bolivia (Beni, La Paz, Santa Cruz) | |||
Botany
| Reich | Plantae | |||
| Tribe | Tracheophyta | |||
| Gymnosperm | Angiosperm | |||
| Class | Magnoliopsida | |||
| Order | Myrtales | |||
| Family | Vochysiaceae | |||
| Genus | Qualea | |||
| Species | paraensis | |||
| Author citation | Ducke | |||
| Scientific name | Qualea paraensis Ducke | |||
Habitus
| Wood type | Hardwood | |||
| Growth habit | Baum | |||
Microscopic features
| Containers | zerstreutporig | |||
| Intkey | https://www.delta-intkey.com/wood/de/www/vocqu-ma.htm | |||
Macroscopic features
| Wood odor | Kein ausgeprägter Geruch | |||
| Growth ring boundaries | clearly recognizable | |||
| Heartwood | with color stripes | |||
| Strip in the heartwood | Mit Farbstreifen | |||
| Color heartwood | gelbbraun | |||
Natural durability
(according to EN 350)
| Mushrooms field | DC 3 | |||
| Mushrooms laboratory | 1 | |||
| Beetle | S | |||
| Termites | S | |||
| Lithophagous molluscs | S m | |||
Impregnability
(according to EN 350)
| Impregnability of heartwood | 2 | |||
| Impregnability of the sapwood | n/a | |||
Physical properties
| Shrinkage radial, mean | 4.30 | % | ||
| Shrinkage tangential, mean | 7.80 | % | ||
Raw density oven-dried u =12%
(e.g. according to EN 350)
| Density, oven dry u =12%, lower limit | 650.00 | kg/m3 | ||
| Density, oven dry u =12%, mean value | 750.00 | kg/m3 | ||
| Density, oven dry u =12%, upper limit | 850.00 | kg/m3 | ||
Mechanical properties
| Flexural strength, mean | 103.00 | N/mm2 | ||
| Shear strength, mean | 14.60 | N/mm2 | ||
| Young's modulus, mean | 19400.00 | N/mm2 | ||
Machining of tropical woods
(Provided by: Precius Woods)
| Machine processing | Good | |||
| Note on machine processing | Silicate insert blunts tools easily | |||
| Predrilling | recommended | |||
| Gluing | Yes | |||
Janka hardness
| Traversal | 12180 | %/% | ||
| Parallel | 10094 | %/% | ||
Shrinkage rate fresh to 65% RH &phi (approx. 12% EMC)
| Radial | 1.5 | % | ||
| Tangential | 2.8 | % | ||
Areas of application
| Verkleidung; Decking; Street & Garden |
Appearances
Wood
Qualea paraensis , ©Precious Woods
QUPA , wood ,
QUPA , wood, label ,
Qualea paraensis , ©Dennis Wilson
Qualea paraensis , ©MundoForestal-Costa Rica