- SAGITTIPETALUM Fröderström, 1942
- SALAZARII Reyes & González-Zorzano, 2011
- SALVADORENSE Standley, 1923
- SAMIUM Runemark & Greuter, 1981
- SANHEDRINUM Berger. 1930
- SARMENTOSUM Bunge, 1833
- SASAKII Hayata, 1913
- SEDOIDES (Decaisne) Pau ex Vidal y Lopez, 1921
- Sedum adolphi and S. 'Golden Glow'
- SEKITEIENSE Yamamoto, 1926
- SEMITERES Rose, 1911
- SEXANGULARE L., 1753
- SHAOAKOUENSE S.S. Ying, 2021
- SHENGKUANGENSE S.S. Ying, 2021
- SINFOROSANUM Reyes, Etter & Kristen, 2017
- SMALLII (Britton) Ahles, 1964 (engl./ fr.)
- SORGERAE Kit Tan & Chamberlain, 1984
- SPATHULIFOLIUM Hooker, 1834
- spec. Comaltepec
- SPIRALIFOLIUM Xie et al., 2014
- STAHLII Solms, 1900
- STEFCO Stefanoff, 1946
- STELLARIIFOLIUM Franchet, 1883
- STELLIFORME S.Watson, 1885
- STENOPETALUM Pursh, 1814
- SUAVEOLENS Kimnach, 1978
- SUBTILE Miquel, 1866
- SUBULATUM (C.A.Meyer) Boissier, 1872
- SURCULOSUM Cosson, 1873
Sedum