Family: Sapindaceae

Cardiospermum grandiflorum, commonly known as large balloon vine, is a fast-growing climbing vine native to tropical regions of Central and South America. It is easily recognized by its delicate white flowers, deeply divided leaves, and distinctive inflated, balloon-like seed capsules. The vine is sometimes grown as an ornamental for its attractive appearance and has been used in traditional medicine in parts of its native range. However, it is not widely cultivated for food or other major economic uses.

Despite its appealing look, large balloon vine poses serious ecological risks. It grows rapidly and climbs over trees and shrubs, forming dense mats that block sunlight and smother native vegetation. The plant produces large numbers of seeds that spread easily by wind and water, allowing it to invade forest edges, stream corridors, and disturbed areas. In Hawaiʻi and other tropical regions, Cardiospermum grandiflorum is considered invasive and can significantly alter native habitats by outcompeting and displacing native plant species.

High Risk Traits:

• Fast-growing, climbing vine that smothers trees and shrubs
  
• Prolific seed production with long-lived seed bank
  
• Readily disperses by wind, water, and human activity
  
• Tolerates a wide range of light and moisture conditions
  
• Thrives in disturbed areas and forest edges
  
• Forms dense mats that suppress native plant regeneration
  
• Known invasive in Hawaiʻi and other tropical regions

Low Risk Traits:

• Not typically cultivated as a major food or timber crop
  
• Requires support structures (trees, fences) to spread aggressively
  
• Limited tolerance to frost and cold climates
  
• Shallow-rooted and relatively easy to remove when young