References
Robson N.K.B. 2001. Studies in the genus Hypericum L. (Guttiferae). 4(1). Sections 7. Roscyna to 9. Hypericum sensu lato (part 1). Bull. British Museum of Natural History (Botany) 31(2): 37-88. Google Scholar
Robson N.K.B. 2001. Studies in the genus Hypericum L. (Guttiferae). 4(1). Sections 7. Roscyna to 9. Hypericum sensu lato (part 1). Bull. British Museum of Natural History (Botany) 31(2): 37-88. Google Scholar