Psoralaea pinnata is a highly invasive weed of heathland, woodland, drier forests, swampy and riparian areas. It is also reported to invade dry coastal vegetation, pasture, forestry plantations, roadsides and waste places. In the species native range it is reported to grow in damp places, often in depressions with an open aspect at higher altitudes.
Manual control
Cut down larger bushes. Hand pull smaller plants.
From SGLN’s 2017 weed guide.
Herbicides must be applied at the appropriate rate as specified on the label and all safety precautions followed. If chemical control is necessary near drainage lines or streams, use extreme caution as the effects on aquatic life can be devastating even in minute amounts. Always seek expert advice.
Chemical control notes from SGLN’s 2017 weed guide
Spray with a half strength application of Round Up (off label*) Always check the herbicide label before use.
These notes are from 2017, and some information, particularly herbicide information, may be out of date. Please ask local suppliers and do your own research in selecting herbicides if choosing chemical control.
Family, origin, type, plant instead, control methods and the note above are from SGLN’s pocket guide Common weeds of South Gippsland (2026).