Family: Arecaceae
Origin, Description & Uses
Prestoea acuminata var. montana (sierra palm or mountain cabbage palm) is native to the Caribbean, where it grows in moist montane forests at higher elevations. It is a slender, graceful palm that can form tall, straight trunks topped with a crown of feathery fronds. In its native range, it is an important ecological species that helps support forest structure and provides food and habitat for wildlife. The palm is also occasionally cultivated as an ornamental in tropical and subtropical landscapes due to its attractive form and ability to thrive in humid, shaded conditions.
Risks & Threats
This palm is generally considered low risk in Hawaiʻi and has not shown signs of becoming invasive. It tends to grow slowly and does not spread aggressively outside of cultivated settings. While it may establish under favorable conditions, there is little evidence that it displaces native vegetation or forms dense, disruptive stands. As with any introduced ornamental plant, it should still be monitored in cultivation, but at present it does not pose a significant ecological threat in the Hawaiian Islands.
High Risk Traits:
- Thrives in tropical climates
- Disturbance adapted
- Somewhat Shade-tolerant
- Forms dense stands in native range
- Self-compatible, monoecious palm
- Seeds dispersed by birds and intentionally by people
- Prolific seed production for a palm
- Limited ecological information makes accurate risk prediction difficult
Low Risk Traits:
- No reports of invasiveness or naturalization, but no evidence of widespread introduction outside native range
- Unarmed (no spines, thorns or burrs)
- Ornamental
- Long time to reproductive maturity (40-50+ years)
- Not reported to spread vegetatively
