Scientific Name
Wrightia tomentosa
Trade Name
Atkuri
Family Name
Apocynaceae
Synonyms
Nerium tomentosum, Wrightia mollissim
Common Names
Atkuri, Bili-kude, Bura machkunda, Daira, Dairi, Danghkyam-kaji, Darbela, Dharauli, Dudh-koraiya, Dudhari, Dudhi, Dudhiya, Gidda, Harido, Igasira, Jula, Kala inderjau, Kala-inderjow, Karingi, Keor, Khalawa, Kilawa, Kirra, Koila-pukri, Lanete, Lettokthein, Mai-lang, Mai-yang-khao-awn, Mailam pala, Mok, Pal kurwan, Palaperbi, Palsi, Pandu kura, Sandikuya, Selemnok, Tambada-kuda, Tambara kura, Taungsalat, Taungsalet, Tella pal, Tella pala, Thonthapalei, Tuar
Regions of Distribution
Oceania and S.E. Asia
Countries of Distribution [VIEW MAP]
Burma, India, Malaysia, Sri Lanka
Common Uses
Carvings, Furniture, Sporting Goods, Turnery
Heartwood Color
| Yellow | ||||||||||||
| White | ||||||||||||
| Orange | ||||||||||||
| Yellow to golden-yellow to orange | ||||||||||||
| White to cream |
Grain
| Even | ||||||||||||
| Closed | ||||||||||||
| Straight | ||||||||||||
| Wavy |
| Wavy | ||||||||||||
| Straight |
Texture
| Fine | ||||||||||||
| Fine |
Luster
| Medium | ||||||||||||
| Lustrous |
Natural Durability
| Perishable | ||||||||||||
| Non-durable | ||||||||||||
| Non durable |
Tree Size
| Bark width is 5-10 mm | ||||||||||||
| Tree height is 0-10 m | ||||||||||||
| Bole length is 0-10 m |
Cutting Resistance
| Easy to saw | ||||||||||||
| Cutting Resistance with dry wood is easy |
Response to Hand Tools
| Easy to Work | ||||||||||||
| Easy to machine |
Turning
| Fairly Easy to Very Easy | ||||||||||||
| Very Good to Excellent Results | ||||||||||||
| Fair to Good Results | ||||||||||||
| Good results | ||||||||||||
| Easy to turn |
Staining
| Staining (Characteristic) = coloured water-soluble extract |
Strength Properties
| Density (dry weight) = 31-37 lbs/cu. ft. | ||||||||||||
| Shearing strength (parallel to grain) = medium | ||||||||||||
| Modulus of Elasticity (stiffness) = very low | ||||||||||||
| Max. crushing strength = low | ||||||||||||
| Hardness (side grain) = soft | ||||||||||||
| Bending strength (MOR) = medium |
Numerical Data
| Item | Green | Dry | English |
| Bending Strength | 9310 | 14566 | psi |
| Density | 32 | lbs/ft3 | |
| Hardness | 995 | lbs | |
| Maximum Crushing Strength | 2139 | 3916 | psi |
| Shearing Strength | 2205 | psi | |
| Stiffness | 1017 | 1199 | 1000 psi |
| Weight | 31 | 25 | lbs/ft3 |
| Item | Green | Dry | Metric |
| Bending Strength | 654 | 1024 | kg/cm2 |
| Density | 512 | kg/m3 | |
| Hardness | 451 | kg | |
| Maximum Crushing Strength | 150 | 275 | kg/cm2 |
| Shearing Strength | 155 | kg/cm2 | |
| Stiffness | 71 | 84 | 1000 kg/cm2 |
References
Bourdillon, T.F.,1908,The Forest Trees of Travancore,Travancore Government Press
Gamble, J.S.,1902,A Manual of Indian Timbers,Sampson Low, Marston & Co. London
McCann, C.,1947,Trees of India: A Popular Handbook,D.B.Taraporevala Sons & Co. Bombay
Pearson, R.S., Brown, H.P.,1932,Commercial Timbers of India,Govt. Printer Calcutta,2 vols
Sono, P.,1974,Merchantable Timbers of Thailand.,Forest Products Research Division, Royal Forest Department, Bangkok,,Thailand.