In an example of native-exotic plants co-operation, this imported oak tree plays host to the New Zealand dendrobium orchid and a karamu (Coprosma robusta).
Just nearby, a vigorously-growing growing karaka (Corynocarpus laevigatus) seems to be supporting a ageing oak.
Kawakawa (Macropiper excelsum) appears to dominate the regenerating areas of the Grafton Gully bush. The holes in the leaves are made by an inchworm called the kawakawa looper – a species that appears to have immunity to the plant’s ability to poison other pests. The vertical fruits are a great snack for kererū and geckos. Leaves of this pant make a spicy (peppery) tea.