Meryta sinclairii. Puka.
Medicinal
" From the mystery attached to this [pukanui], and from remarks made I gathered that it was used to produce abortion, as was the decoction from Tataramoa and Harakeke." (K. Pickmere 1940)
This tree is related to ginseng. See related pharmacology notes in Brooker, Cambie and Cooper, 1988.
See also Riley 1994 for information on medicinal uses of related plants elsewhere in the world.