Brummitt, R. K. (1974). A remarkable new species of Calystegia (Convolvulaceae) from California. Kew Bulletin 29:3 499–502. JSTOR4107994doi:10.2307/4107994
federalregister.gov
USFWS (18 October 1996). "Determination of endangered status for four plants and threatened status for one plant from the central Sierran foothills of California". Federal Register. 61 (203): 54346–54358. 61 FR54346
Brummitt, R. K. (1974). A remarkable new species of Calystegia (Convolvulaceae) from California. Kew Bulletin 29:3 499–502. JSTOR4107994doi:10.2307/4107994
natureserve.org
explorer.natureserve.org
NatureServe (5 May 2023). "Calystegia stebbinsii". NatureServe Network Biodiversity Location Data accessed through NatureServe Explorer. Arlington, Virginia: NatureServe. Retrieved 29 May 2023.