Flora of Northern Ireland
Hypericum perforatum
© Paul Hackney
Hypericum perforatum
© Paul Hackney
Hypericum perforatum
© Paul Hackney
Hypericum perforatum
(Map updated: March 2008)
 

A widespread native hairless species with shoots up to three feet tall that are rounded in cross-section but with two longitudinal raised lines, arising from a creeping rhizome. Flowers are about 3/4 inch across, of typical St. John's wort form. The name perforatum refers to the abundant translucent dots scattered across the leaves, which are about 3/4 inch long and narrow or oval in form.

Found in open woodland, hedgebanks, grassland, old railway tracks etc.

All names: Hypericum perforatum L.