Family: Apocynaceae
Origin, Description & Uses
Willughbeia edulis is a tropical woody climbing plant native to a region stretching from Assam in northeastern India through mainland Southeast Asia to the Malay Peninsula. An evergreen member of the dogbane family (Apocynaceae), it produces glossy foliage, fragrant flowers, and round to oval fruits with a sweet, edible pulp that are enjoyed fresh in its native range. The plant also produces a natural latex, although it is grown primarily for its fruit rather than as a commercial rubber source. Its attractive foliage and edible fruit make it of interest for tropical gardens and specialty fruit collections.
Risks & Threats
Although Willughbeia edulis is not known to be naturalized in Hawaiʻi, it possesses traits that are cause for concern, including vigorous climbing growth and the ability to reproduce by seed. In suitable tropical climates, these characteristics could allow it to spread beyond cultivation if not properly managed. At present, there is no evidence that it has become invasive in Hawaiʻi, but caution is recommended to ensure that it will not negatively impact native ecosystems or surrounding vegetation. Ongoing evaluation and responsible cultivation are encouraged to determine whether this species could pose a future risk in the Hawaiian Islands.
High Risk Traits:
- Thrives in tropical climates
- Climbing growth habit
- Reproduces by seeds
- Seeds dispersed by mammals, possibly birds and intentionally by people
- Limited ecological information reduces accuracy of risk prediction
Low Risk Traits:
- No reports of invasiveness or naturalization, but no evidence of widespread introduction outside native range
- Unarmed (no spines, thorns or burrs)
- Edible fruit
- Medicinal uses
- Not reported to spread vegetatively
- Fruit relatively large and unlikely to be accidentally dispersed
