Photographs: Co. Cork

Perforate St. John's-wort Hypericum perforatum Lus na Maighdine Muire Family: Hypericaceae Flowering time: June-September. Perennial. Native. Golden-yellow flowers with black dots on petal edges and pointed sepals. Leaves are oblong-elliptic and many transluscent dots are visible when held up to light. Stems round with 2 raised ridges. Hairless. Common on grassland, roadsides, hedge banks, scrubland on drier, neutral or more calcareous ground than Imperforate St. John's-wort Des Etangs' St. John's-wort, Hypericum x desetangsii is the hybrid between Imperforate St. John's-wort and Perforate St. John's-wort

Perforate St John's-wort, Hypericum perforatum, Lus na Maighdine Muire