Family: Salicaceae

Origin, Description & Uses
Dovyalis hebecarpa, commonly known as Ceylon gooseberry, is native to Sri Lanka. This small to medium-sized tree produces glossy, thorny branches and bears round, dark purple to black fruits that are tart and edible. The fruits are often used for fresh eating, jams, jellies, and preserves. Its dense, thorny growth can also provide natural barriers or hedges in landscaping. In Hawaii, this species has become naturalized on Kauaʻi, Oʻahu, and Hawaiʻi islands.

Risks & Threats
Although valued for its fruit, Ceylon gooseberry possesses traits that are cause for concern in tropical island ecosystems. Its thorny, fast-growing nature allows it to spread into natural areas, outcompeting native plants and altering habitats. Because it is naturalized, it has established self-sustaining populations that could further disrupt native plant communities and the animals that depend on them. For these reasons, it is recommended to choose a low-risk or native alternative when planting in Hawaiʻi to protect the islands’ delicate ecosystems.

High Risk Traits:

• Naturalized: Has naturalized beyond its native range (e.g., Puerto Rico).
  
• Weedy relative: Invasive congener (Dovyalis caffra) documented.
  
• Spiny: Produces sharp spines up to 4 cm long.
  
• Unpalatable: Used in Hawaii to exclude cattle; not browsed.
  
• Bird-dispersed: Fleshy fruits attract birds, enabling wide seed spread.
  
• Gut-passage survival: Seeds adapted to survive digestion.
  
• Thicket-forming: Spiny, vigorous growth habit suitable for barrier hedges.
  
• Resprouts: Responds to severe pruning with rapid regrowth and heavy fruiting.
  
• Soil tolerant: Thrives on various soil types, including sand and limestone.
  
• Dioecious but adaptable: Occasional perfect flowers ensure reproduction even in isolation.

Low Risk Traits:

• Not an agricultural weed: No evidence of significant agricultural or forestry impacts.
  
• Not toxic: Edible fruit; no evidence of toxicity to animals or humans.
  
• Requires full sun: Unlikely to establish in shaded, closed-canopy ecosystems.
  
• Not shade tolerant: Requires full sun to thrive.
  
• Not a primary pest host: Occasionally infested but not a major pest/pathogen host.
  
• No vegetative spread: Reproduces by seed only.
  
• Limited dispersal mechanisms: Seeds not adapted for wind, water, or external animal dispersal.
  
• No persistent seed bank: Seeds are recalcitrant and do not persist long in soil.