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Aguana
Aguana (Stereospermum kunthianum)

Family: Bignoniaceae

Common names: Aguana, Ayada, Bisuma, Eke-deka, Enyitai, Esonoetokwakofoo, Essobelia, Golombi, Jansami, Jiri, Kabvevesango, Kayubule, Kuti-kani-misa, Lengerigongo, Lopai, Mtese, Mukuku, Mulakanjovu, Mulemangundu, Mutandangozi, Ndebeasa, Okwekwe, Opolok, Osualong, Pink jacaranda, Tepiliga, Tunturei, Umanatumba, Ylinga, Zugubyetia

Distributed in: Congo, Nigeria, Senegal, Sudan, Zambia, Zimbabwe (Africa)

Common uses: Furniture, Handles: general, Tool handles, Toothpicks

Tree size: Tree height is 50-60 m

Colors: the heart isWhite to cream, Yellow to golden-yellow to orangeand the sapwoodPink, Same as heartwood.The grain isWavy, the textureMedium to coarse

Natural durability: Non durable, Susceptible to attack from termites (Isoptera)

Kiln Schedules: Dry at a slow speed

Drying Defects: Slight twist/warp, Splitting

Cutting Resistance: Fairly Difficult to Very Difficult to saw

Gluing: Easy to glue

Nailing: Easy to nail, Holds nails well

Planing: Planes well, to a good finish

Resistance to Impregnation: Sapwood is moderately resistant

Response to hand tools: Easy to machine


Staining: Finish is generally good ; Varnishing: Good;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density 817 kg/m3
Bending Strength kg/cm2
Crushing Strength kg/cm2
Hardness kg
Impact Strength cm
Shearing Strength kg/cm2
Stiffness 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage %
Weight kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Density 51 lbs/ft3
Weight 50 40 lbs/ft3

Density (dry weight) = 61-67 lbs/cu. ft
Density (dry weight) = 38-45 lbs/cu. ft.

Eggeling, W.J.,1940,Indigenous Trees of Uganda,Govt. Printer Entebbe UgandaFanshawe, D.B.,1962,Fifty Common Trees of Northern Rhodesia,Natural Resources Board and Forestry Department, NdolaGoldsmith, B., Carter, D.T.,1981,The Indigenous Timbers of Zimbabwe,Forestry Commission, Zimbabwe Research Bulletin No.9Irvine, F.R.,1961,Woody Plants of Ghana,O.U.P. LondonKeay, R.W.J.,1964,Nigerian Trees Vol.2,Nigeria Federal Department of Forest Research, IbadanPardy, A.A.,1952,Notes on Indigenous Trees and Shrubs of S. Rhodesia - Stereospermum,kunthianum,Ministry of Agriculture and Lands S. Rhodesia Bulletin,No.1639Unwin, A.H.,1920,West African Forests and Forestry,T. Fisher Unwin Ltd. LondonWhite, F.,1962,Forest Flora of Northern Rhodesia,O.U.P. London
*Come interpretare i dati (manleva su eventuali imprecisioni)