Invasiveness Assessment | Impact Assessment | Potential Distribution | Present Distribution
Scientific name: Hypericum tetrapterum Fr.
Common name: St Peter’s wort, Square-stem St John's wort
Status: Regionally Controlled weed in the Port Phillip & Westernport (East & West) and North East CMAs.
Restricted in the Mallee, North Central, Wimmera, Glenelg-Hopkins, Corangamite, Goulburn Broken, West Gippsland and East Gippsland CMAs.
Habitat: Subhumid warm-temperate regions, usually confined to moist areas adjacent to streams and swamps from where it encroaches into moist pastures (Parsons and Cuthbertson 1992). St Peter’s wort invades riparian vegetation (Carr et al 1992).