Family: Melastomataceae
High Risk Traits:
- Native to subtropical/tropical climates (Brazil, Uruguay, Paraguay); high climate match for invasion
- Naturalized on multiple Hawaiian Islands: O'ahu, Moloka'i, Lāna'i, Maui, and Hawai'i
- Invasive in forests, pastures, and waterways
- Unpalatable to cattle
- Tolerates shade (germinates and grows in closed-canopy forests)
- Tolerates poor soils (volcanic lava flows)
- Forms dense, monotypic thickets >3 m tall
- Self-compatible; produces viable seeds
- Reproduces vegetatively (rhizomes, rooting at nodes)
- Flowers within first year
- Dispersed by humans (roads/trails), intentional planting (ornamental), birds, and other animals (gut passage)
- Prolific seed production; persistent seed bank (>1 yr)
- Cutting promotes spread (vegetative regrowth)
Low Risk Traits:
- No spines, thorns, or burrs
- Non-toxic to animals and humans; no allergenic effects
- No allelopathic or parasitic behavior
- Not a fire hazard (prefers wet habitats)
