Family: Oleaceae
High Risk Traits:
- Grows in temperate to subtropical climates, and elevation range exceeds 1000 m, demonstrating environmental versatility
- Naturalized on Hawaii Island, North and South America, Australia, New Zealand, Mozambique, and South Africa
- An environmental weed in Australia and Argentina
- Other Ligustrum species are invasive
- Toxic to animals (horses) and people
- Host of pathogens
- Shade-tolerant
- Tolerates many soil types
- Forms dense stands, excluding other vegetation
- Reproduces by seeds and vegetatively by suckering
- Self-compatible
- Seeds dispersed by birds, other frugivorous animals, ants, water, dumped garden waste and intentionally by people
- Prolific fruit and seed production
- Seeds can persist in the soil for 1-2.5 years
- Able resprout from cut stumps without herbicide treatment
Low Risk Traits:
- Unarmed (no spines, thorns, or burrs)
- Browsed by deer, pigs and sheep (palatable despite reports of toxicity)
- Ornamental
- Reaches maturity in 4+ years
- Herbicides may provide effective control