S.Atkins (Moldenke) 2005 - Atkins S (2005) The Genus Stachytarpheta (Verbenaceae) in Brazil. Kew Bulletin 60(2): 161-272. Retrieved from http://www.jstor.org/stable/4110935
There is no corrections for Stachytarpheta longispicata var. longipedicellata yet.