The worst invader, Asner says, is strawberry guava (Psidium cattleianum), which was imported for its fruit.
Invaders such as purple-flowered Asian melastome and strawberry guava threaten delicate Hawaiian natives such as thornless roses and tree ferns.
Invaders such as purple-flowered Asian melastome and strawberry guava threaten to overrun delicate Hawaiian natives such as thornless roses and delicate tree ferns.