Ramos, A. (1986). Biosystematic study of the genus Hypericum L. (Guttiferae) in the Iberian Peninsula and the Balearic Islands. II. Biotype, ramification and inflorescences. Acta Botanica Malacitana, 11, 157-176. https://doi.org/10.24310/Actabotanicaabmabm.v11i.9466