- GATTEFOSSEI Battandier & Jahandiez, 1921
- GIAJAE Hamet, 1910
- GLABRUM (Rose) Praeger, 1921
- GLAEBOSUM Frödeström, 1942
- GLASSII Pérez-Calix, 2007
- GLAUCOPHYLLUM R. T. Clausen, 1946
- GLOMERIFOLIUM Gilbert, 1985
- GOLDMANII (Rose) Moran, 1996
- GRACILE C.A.Meyer, 1831
- GRANDIPETALUM Fröderström, 1936
- GRANDISEPALUM Clausen, 1949
- GRANDYI Hamet, 1913
- GREGGII Hemsley, 1878
- GRIFFITHSII Rose,1905
- GRISEBACHII Boissier & Heldreich, 1856
- GRISEUM Praeger, 1917
- GUADALAJARANUM S.Watson, 1887
- GUATEMALENSE Hemsley, 1878
- GYPSICOLA Boissier & Reuter, 1842
- GYPSOPHILUM B.L.Turner, 1986
Sedum