It has been considered closely related to Verbenaceae but several recent phylogenetic studies have shown that a lot of the genera classified in Verbenaceae belong instead in Lamiaceae , whereas the core genera of Verbenaceae are not closely related to Lamiaceae and are more closely related to other members of the Lamiales . It had traditionally been considered closely related to Verbenaceae , but in the 1990s , phylogenetic studies showed that many genera classified in Verbenaceae belong instead in Lamiaceae .