Family: Annonaceae

Origin, Description & Uses
Monodora junodii, commonly known as green apple, is a small to medium-sized tropical tree native to southeastern Kenya through eastern KwaZulu-Natal in southern Africa. It belongs to the custard apple family (Annonaceae) and is valued for its attractive foliage, fragrant flowers, and distinctive green, apple-like fruits. The tree is sometimes grown as an ornamental in tropical and subtropical gardens and may also be cultivated for its edible fruit and shade. Its unusual appearance and decorative qualities make it appealing for collectors and botanical plantings.

Risks & Threats
Green apple is considered a low risk species for Hawaii. There is currently little evidence that it spreads aggressively or causes ecological harm in areas where it is cultivated. Like many tropical fruit trees, it may occasionally reproduce from seed near planting sites, but it has not demonstrated invasive behavior or significant impacts on native ecosystems. Continued responsible cultivation and monitoring are recommended, but at this time the species is not considered a major threat to Hawaii’s natural environments.

High Risk Traits:

• Native to tropical/subtropical climates (suitable for many warm regions)
  
• Produces viable seed
  
• Likely self-compatible (common in genus Monodora)
  
• Flowers probably fly-pollinated (generalist pollination, not highly specialized)

Low Risk Traits:

• Not naturalized outside its native range
  
• No evidence of weediness (not a garden, agricultural, environmental, or congeneric weed)
  
• No spines, thorns, or burrs
  
• No adaptation for wind, water, or external animal dispersal
  
• Not likely to be dispersed unintentionally, as a produce contaminant, or intentionally by people
  
• Not a prolific seed producer (small tree, solitary flowers)
  
• Does not tolerate a wide range of soil conditions (prefers well-drained sand forest soils)
  
• Fruit fleshy but not palatable (may limit animal dispersal)