Hawaii's Most Invasive Horticultural Plants

   
ironwood
Casuarina (all species)

(Photo credit: George Staples)

 

(Photo credit: Gordon Daida)


Other names:Australian pine, she-oak, beefwood, toa
Description: Tree up to 80' tall with drooping, pine-like needles and 1/2-1" woody cones.
Risk areas: Dry areas at low (0-2000 ft.) elevations.
WARNING:ALL SPECIES of this genus should probably be avoided, as they

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