Families with worldwide number of genera:
- Crassulaceae (34 WW, 18 NY)
- Saxifragaceae (33 WW, 14 NY)
- Hamamelidaceae (27)
- Haloragaceae (8)
- Peridiscaceae (4)
- Altingiaceae (3)
- Iteaceae (2)
- Paeoniaceae (1)
- Cercidiphyllaceae (1)
- Daphniphyllaceae (1)
- Aphanopetalaceae (1)
- Tetracarpaeaceae (1)
- Penthoraceae (1)
- Pterostemonaceae (1)
- Grossulariaceae (1)