Family: Bignoniaceae
Bignonia magnifica (glowvine, purple bignonia) is an evergreen tropical climber native to Colombia and Ecuador but cultivated throughout the tropics. Bignonia magnifica is prized for its ornamental qualities, featuring showy, trumpet-shaped flowers. It is naturalized and classified as an environmental weed in Australia but to date, it has not been documented as naturalized on any Hawaiian Islands. Its smothering growth habit and ability to spread vegetatively can lead to it out competing surrounding vegetation. However, this plant requires specialized pollinators, and seed production may be absent outside its native range, minimizing risk of dispersal.
High Risk Traits:
- Thrives in tropical climates
- Elevation range exceeds 1000 m
- Naturalized in Australia and possibly elsewhere
- Classified as an environmental weed in Australia
- Other Bignonia species have become weedy and invasive
- Climbing and smothering growth habit
- Tolerates many soil types
- Seeds, if produced, are adapted to wind-dispersal
- Can spread vegetatively, and from discarded garden waste
Low Risk Traits:
- Unarmed (no spines, thorns or burrs)
- Non-toxic
- May requires full sun
- Possibly self-incompatible
- Requires specialized pollinators
- Seed production may be limited or absent outside native range, minimizing risk of long-distance dispersal