- FortsonWells, E., The taxonomy of Saxifraga (Saxifragaceae) section Boraphila subsection Integrifoliae in western North America, Systematic Botany Monographs vol. 3(1): 1-?? (1984)
Synonymous genera: 
- Cascadia  A.M. Johnson (1927) 
- Ciliaria  Haw. (1821) 
- Leptasea  Haw. (1821) 
- Muscaria  Haw. (1821) 
- Saxifragopsis  Small (1896) 
- Spatularia  Haw. (1821) 
- Zahlbrucknera  Rchb. (1833)