The family Saxifragaceae has about 40 accepted genera, according to Plants of the World Online.[1]
The family does not include the genus Sassafras, despite the possibly related Latin etymology of the names.
. Byng. James W.. James W. Byng. The Flowering Plants Handbook: A practical guide to families and genera of the world. 2014. Plant Gateway Ltd.. 978-0-9929993-1-5. Saxifragales. 156–166.