|Melochia umbellata (Houtt.) Stapf|
This small, fast-growing, shrubby tree was originally introduced to produce shade for young forest trees and perhaps coffee. It rapidly fills any available space after disturbance, displacing the slower growing native species. The seeds are dispersed by wind. Adaptation to fire is unknown, and it has not been evaluated for biological control.
The major infestations are in Puna and Hilo, Hawai'i.