Taonga or 'weed'? Contrasting views on karaka

Embargoed until: Publicly released: 2024-09-06 03:00

New Zealand; Pacific

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Aotearoa's karaka/ kōpi tree is a taonga species with spiritual and cultural importance for Māori and Moriori. Native birds feed on its flowers, fruit, and insects; however, the berries can be poisonous to dogs, humans, and other animals, and the tree can become invasive outside of its natural range, shading out other native species. A review published in the New Zealand Journal of Botany examines different perspectives on karaka and its 'weediness', based on past research and discussion with participants at a wānanga about the plant. The authors say that planting karaka as a restoration species outside of its natural range should be considered carefully. Their other recommendations include monitoring for seedlings in areas that will become more suitable for karaka with climate change, and co-management with mana whenua as a 'critical first step' to respecting cultural practices while addressing ecological concerns.