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Hawaii's Most Invasive Horticultural Plants |
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![]() (Photo credit: USGS-BRD) |
Description: | Shrub or tree to 25' tall, with 4-6" hairless leaves, intensely fragrant 1/4" green to yellow flowers, and 1/4" fruits that split in two. |
Risk areas: | Dry and moist forest up to 4000 ft. elevation. |
WARNING: | Several species of Pittosporum have proven invasive elsewhere and some are beginning to spread in Hawaii. Exotic species of this genus may potentially compete or interbreed with endemic Hawaiian species of the genus. All foreign species of Pittosporum should be avoided for horticulture in Hawaii. |