| 1 | Leaves spirally arranged |
| 1' | Leaves distichous |
| 2 | Stipules fully amplexicaul (leaving an annular scar) Artocarpus subg. |
| 2' | Stipules not fully amplexicaul |
| 3 | Stipules lateral, subulate, subpersistent |
| 3' | Stipules intrapetiolar, broader, caducous |
| 4 | Trees dioecious; pistillate flowers free |
| 4' | Trees monoecious; pistillate flowers connate Artocarpus subg. |
