Senecio mikanioides Otto ex Walp.
German ivy, Italian ivy

This noxious, light-loving vine grows rapidly into the emergent layers of forests where it festoons the vegetation. The seeds are wind-dispersed. The degree of adaptation to fire is unknown, and it has not been evaluated for biological control.

Senecio grows in open, wet habitats between 800-2,000 m. There are several infestations along the Saddle Road, e.g., Pulu Huluhulu, Hawai'i, and it is becoming established at upper elevations on Mauna Kea and Manuka. The infestations there are local and could still be controlled with mechanical methods.

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