|Acacia farnesiana (L.) Willd.|
This thorny, deciduous shrub grows to 4 m in height, sometimes forming impenetrable thickets, although in most areas it forms a more open cover. The seeds are dispersed by ungulates which eat the pods. Although the aerial portions may be killed by fire, it soon regenerates from basal shoots. It has not been evaluated for biological control.
Klu grows in dry habitats between sea level and 1,000 m on all
islands. There are some dense infestations at Lualualei, O'ahu,
and Lihau, Maui; some overgrazed areas on Lana'i; and the Ha'upu
area of Kaua'i, particularly Mahalapu.