Key for Combretaceae

1Leaves opposite or clearly predominantly so; petals usually present
1'Leaves spiral or alternate; petals absent
2Mangrove shrub or tree with stilt-roots and often pneumatophores; flowers with pair of small prophylls (bracteoles) fused to lower hypanthium
2'Woody lianas, shrubs or small trees, without stilt-roots and pneumatophores; flowers without prophylls (bracteoles) fused to lower hypanthium
3Flowers in small dense spherical inflorescences; fruits densely packed into cone-like heads
3'Individual flowers clearly visible; fruits not in cone-like heads
4Calyx lobes clearly demarcated; anthers dorsifixed and versatile
4'Calyx lobes scarcely developed; anthers adnate to filament