Plants of Oxfordshire: Hypericaceae - St John's-wort Family, Hypericum - St John's-worts Genus
Hypericum androsaemum, Tutsan
Hypericum calycinum, Rose-of-Sharon
Hypericum forrestii, Forrest's Tutsan
Hypericum hirsutum, Hairy St John's-wort
Hypericum perforatum, Perforate St John's-wort
Hypericum tetrapterum, Square-stalked St John's-wort
Hypericum x.desetangsii, Des Etangs' St John's-wort