Family: Fabaceae
High Risk Traits:
- Naturalized in Australia and New Zealand
- Regarded as an environmental weed in Australia (threatens native plants)
- Other Psoralea species are invasive
- Tolerates many soil types
- Capable of forming dense stands)
- N-fixing (may alter soil chemistry)
- Reproduces by seeds
- Reaches maturity in 2 years
- Seeds dispersed by water, as a soil contaminant and intentionally by people
- Prolific seed production
- Seeds persist in the soil for 8 years
- Resprouts after cutting and fire
Low Risk Traits:
- Native to Mediterranean climate (may limit ability to invade in tropical/subtropical environments)
- Unarmed (no spines, thorns or burrs)
- Ornamental
- Herbicides may provide effective control