Square-stalked St John's-wort
Hypericum tetrapterum
Square-stalked St John's-wort - Hypericum tetrapterum.

Water- or marshplants;
VI-IX, Z4-8, 40 cm;
golden.

Tiib-naistepuna, Hypericum tetrapterum

Eng.: Square-stalked St John's-wort, St. Peter's-wort. Bot. syn.: Hypericum acutum Moench, Hypericum quadrangulum L.