Irish wildflowers BSBI map

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

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

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