Family: Asparagaceae
High Risk Traits:
- Broad climate suitability (able to grow in 5 hardiness zones)
- Able to grow, and potentially spread, in tropical climates
- Naturalized in India
- Toxic bulbs
- Tolerates many soil types
- Geophyte (bulbs persist in soil)
- Reproduces by seeds and vegetatively by bulbs
- Seeds dispersed by wind and intentionally by people
Low Risk Traits:
- No reports of negative impacts outside native range
- In the Hawaiian Islands, bulbs reported to not persist after flowering
- Unarmed (no spines, thorns, or burrs)
- Requires full sun (dense shade may limit ability to spread)
- Self-incompatible
- Adapted for specialized pollination by pompilid wasps in the genus Hemipepsis
- Typically flowers after 4-5 years