Grevillea robusta A. Cunn. ex R. Br.
silky oak, silver oak

This large, evergreen tree has been used extensively in reforestation programs. The leaves produce an allelopathic substance which inhibits the establishment of all species, including itself apparently. The seeds are wind-dispersed, and adaptation to fire in Hawai'i is unknown. Because of its use in forestry and as a shade tree by some ranchers, it has not been evaluated for biological control.

It is quite widespread in dry areas between 350-1,600 m elevation on all major islands.

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