Family: Malpighiaceae

Origin, Description & Uses:
Heteropterys glabra, commonly known as red wing, mariposa, or vining maple, is native to parts of South America, including northeastern and northwestern Argentina, southern and southeastern Brazil, west-central Brazil, Paraguay, and Uruguay. This woody, climbing vine is prized for its ornamental appeal, producing bright yellow flowers and distinctive winged seeds that resemble small butterflies. Its fast growth and ability to quickly cover fences, trellises, and arbors make it a popular choice for adding dense greenery and visual interest in tropical and subtropical landscapes.

Risks & Threats:
Heteropterys glabra is reported as possibly naturalizing on Hawaii Island and possesses traits that are cause for concern. Its vigorous growth, climbing habit, and ability to spread by seed enable it to overgrow and smother surrounding vegetation, potentially forming dense mats that outcompete native plants. As a naturalized species with invasive tendencies, it could detrimentally impact tropical island ecosystems by altering habitat structure and reducing biodiversity. To help protect Hawaii’s native environments, it is recommended to avoid intentional cultivation of this species and instead choose a low-risk or native alternative.

High Risk Traits:

• Grows in tropical climates
  
• Naturalizing on Hawaii Island, and Florida (confirmation needed)
  
• Targeted for control in Florida (a rapid response candidate)
  
• Other Heteropterys species are regarded as weeds
  
• Shade-tolerant
  
• Tolerates many soil types
  
• Climbing and smothering growth habit
  
• Reproduces by seeds
  
• Seeds dispersed by wind and intentionally by people
  
• Limited ecological information reduces accuracy of risk prediction

Low Risk Traits:

• Limited reports of invasiveness or naturalization, but limited evidence of widespread introduction outside native range
  
• Unarmed (no spines, thorns or burrs)
  
• Ornamental