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  • Close-up of ongaonga leaves and hairs.
    Rights: Public domain Published 26 January 2023 Size: 710 KB Referencing Hub media

    A close-up image of the leaves and hairs from the ongaonga (Urtica ferox) plant. This is a New Zealand tree nettle and contact with the hairs can be very painful, but it is the main source of food for the larvae of the New Zealand red admiral butterfly or kahukura, Vanessa gonerilla.

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