Scientific Name: Hypericum perforatum

St Johns Wort

Information:

A prolific seeder with long lived, easily spread, seeds. Will outcompete most pastures. Can be controlled by cultivation and herbicide. Causes photosensitisation, particularly in sheep and horses.

Links:

Department Primary Industries - NSW WeedWise - St John's Wort

Macquarie Valley & Lachlan Valley Weeds Authority Committees - St John's Wort