苦楝
This plant is threatened by a number of processes, chiefly habitat destruction and degradation by feral ungulates such as pigs and goats and the presence of non-native plants. The worst invasive plants include shoebutton ("Ardisia elliptica"), lantana ("Lantana camara"), yellow foxtail ("Setaria parviflora"), and Pride of India ("Melia azedarach"). On Laysan this sedge and other plants were decimated by introduced rabbits. The seeds are eaten by the Laysan finch ("Telespiza cantans").