| Scientific Name | Artocarpus heterophyllus Lamk. |
| Trade Name | Jack,Kathal |
| Local Name | Plavu |
| Family | Moraceae |
| Tree Size | Medium to large |
| Tree Height ( m ) | 18 - 25 |
| Tree Diameter ( cm ) | 120 |
| Tree Distribution | Tropical evergreen forests;widely cultivated |
| Sapwood-Heartwood Distinction | Distinct |
| Sapwood Colour | Greyish or pale yellow |
| Heartwood Colour | Yellow to yellowish brown |
| Hardness | Moderately hard |
| Specific Gravity Based on Weight Over-dry and Volume Green | 0.65 |
| Weight | Moderately heavy |
| Weight(Kg)/cubic meter at 12% Moisture Content | 585 |
| Texture | Coarse to medium textured |
| Grain | Straight to interlocked grained |
| Growth Rings | Indistinct |
| Porosity | Diffuse porous |
| Vessel Size | Large to medium sized |
| Vessel Arrangement | Solitary and in radial multiples of two to three |
| Vessel Diameter | 160 - 270 220 |
| Vessel Element Lenght | 300 - 530 530 |
| Perforation | Simple |
| Pit Outline | Circular |
| Pit Size | Large(9 -15 µm),non-vestured |
| Vessel Ray Pitting | Alternate and pit outline circular |
| Ray Nature | Moderately broad to fine,few and widely spaced |
| Ray Arrangement/Type | 3-5 seriate,heterogeneous type-2. Body made up of procumbent cells with 1or 2 marginal rows of square cells |
| Ray Number | 3 - 4 |
| Ray Height | 370 - 890 610 |
| Fibre Walls | Thin,non-septate |
| Fiber Length | |
| Modulus of Rupture in kg/cm2 (Green) | 633 |
| Modulus of Elasticity in kg/cm2 (Green) | 82300 |
| Modulus of Rupture kg/cm2 (Dry) | 806 |
| Modulus of Elasticity in kg/cm2 (Dry) | 100700 |
| Uses | Plywood and veneers, brushware, furniture and cabinets, blockboards and tool handles, musical instruments, mathematical, engineering and drawing instruments, lorry and bus bodies, carving and turnery, dyes, boxes and packing cases. |
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