Hypericum foliosum is a species of flowering plant in the St. John's wort family Hypericaceae, section Androsaemum.
Hypericum foliosum is located in the Azores, Portugal, and can be found in damp shaded places in the mountains from 220–800 m (720–2,620 ft) above sea level.
Hypericum foliosum is a shrub that grows to be 50–100 cm (20–39 in) tall. Its inflorescence is golden yellow and has 12-18 petals. It has 20-30 stamens grouped into several stamen fascicles.