Clianthus puniceus, common name kaka beak (Kōwhai Ngutu-kākā in Māori), is a species of flowering plant in the genus Clianthus of the legume family Fabaceae, native to New Zealand's North Island. It is an evergreen shrub, one of two species of Clianthus, both of which have striking clusters of red flowers resembling the beak of the kākā, a New Zealand parrot. The plant is also known as parrot's beak, parrot's bill and lobster claw. There is also a variety with white to creamy coloured flowers. The Latin specific epithet puniceus refers to the reddish-purple colour of the flowers.