SQUARE-STALKED ST JOHN'S WORT Hypericum tetrapterum

Eurinllys pedrongl 

An erect, medium sized perenniall, with a stout stem with four winged ridges, giving a square stemmed appearance, winged at the corners. In late summer to early autumn it produces domed clusters of yellow flowers to 1cm across. The flowers are produced in flowerheads of 10–30 flowers. Found on damp grassland.

Height: 70cm

Flowers: July to September

Colour: Yellow