SEARCH INVASIVE PLANTS

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Cortaderia jubata, Cortaderia selloana

pampas grass

Considered very invasive; C. jubata is on the Hawai`i State Noxious Weed List. The Division of Forestry and Wildlife of the...

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Eichhornia crassipes

water hyacinth

A floating plant with showy purple flowers. The Division of Forestry and Wildlife of the Hawai`i Department of Land and Natural...

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Nassella tenuissima

Mexican feather grass

An ornamental grass that will dominate natural areas and become a major fire hazard.

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Pennisetum setaceum

fountain grass

Poses a major fire threat to many of Hawai`i's natural and developed areas. Pennisetum setaceum is on the Hawai`i State...

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Pennisetum villosum

feathertop fountain grass

Poses a major fire threat to many of Hawai`i's natural and developed areas.

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Silybum marianum

milk thistle, Mary's thistle

Milk thistle is a spiny medicinal herb capable of forming dense, impenetrable thickets in pastures and grasslands. ...

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Sphagneticola trilobata

wedelia

A popular ornamental groundcover that crowds out low-growing plants. The Division of Forestry and Wildlife of the Hawai`i...

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Verbascum thapsus

common mullein

Considered very invasive and is on the Hawaii State Noxious Weed List. The Division of Forestry and Wildlife of the Hawaii...