Hypericum (Nomenclature) Diagnostic description: Stems persistently 2-4-lined, lines glandiferous, at least one pair prominent (sometimes weak and eglandular in Sp. 12). Spp. 1-12. Source: Studies in the genus Hypericum L. (Guttiferae) 4(2). Section 9. Hypericum sensu lato (part 2): subsection 1. Hypericum series 1. Hypericum.
