NRCS. "Heliotropium tenellum". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 14 May 2015. /wiki/Natural_Resources_Conservation_Service ↩
Baskin, Jerry M.; Baskin, Carol C. (1978). "Leaf Temperatures of Heliotropium tenellum and Their Ecological Implications". American Midland Naturalist. 100 (8): 488–492. doi:10.2307/2424854. JSTOR 2424854. /wiki/Doi_(identifier) ↩