"Yellow Stonecrop". California Native Plant Society. Calscape. Retrieved 22 February 2021.
doi.org
Zika, Peter F.; Wilson, Barbara L.; Brainerd, Richard E.; Otting, Nick; Darington, Steven; Knaus, Brian J.; Nelson, Julie Kierstead (10 September 2018). "A review of Sedum section Gormania (Crassulaceae) in western North America". Phytotaxa. 368 (1): 1. Bibcode:2018Phytx.368....1Z. doi:10.11646/phytotaxa.368.1.1. S2CID91923614.
Zika, Peter F.; Wilson, Barbara L.; Brainerd, Richard E.; Otting, Nick; Darington, Steven; Knaus, Brian J.; Nelson, Julie Kierstead (10 September 2018). "A review of Sedum section Gormania (Crassulaceae) in western North America". Phytotaxa. 368 (1): 1. Bibcode:2018Phytx.368....1Z. doi:10.11646/phytotaxa.368.1.1. S2CID91923614.
"AGM Plants - Ornamental"(PDF). Royal Horticultural Society. July 2017. p. 96. Retrieved 8 November 2018.
semanticscholar.org
api.semanticscholar.org
Zika, Peter F.; Wilson, Barbara L.; Brainerd, Richard E.; Otting, Nick; Darington, Steven; Knaus, Brian J.; Nelson, Julie Kierstead (10 September 2018). "A review of Sedum section Gormania (Crassulaceae) in western North America". Phytotaxa. 368 (1): 1. Bibcode:2018Phytx.368....1Z. doi:10.11646/phytotaxa.368.1.1. S2CID91923614.