Jones, K.; Anderberg, A. A.; Ronse De Craene, L. P.; Wanntorp, L. (23 June 2012). "Origin, diversification, and evolution of Samolus valerandi (Samolaceae, Ericales)". Plant Systematics and Evolution. 298 (8): 1523–1531. Bibcode:2012PSyEv.298.1523J. doi:10.1007/s00606-012-0655-z.
efloras.org
"Samolus". Flora of North America. eFloras.org. Retrieved 2018-02-01.
harvard.edu
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Jones, K.; Anderberg, A. A.; Ronse De Craene, L. P.; Wanntorp, L. (23 June 2012). "Origin, diversification, and evolution of Samolus valerandi (Samolaceae, Ericales)". Plant Systematics and Evolution. 298 (8): 1523–1531. Bibcode:2012PSyEv.298.1523J. doi:10.1007/s00606-012-0655-z.