Kōwhai

Sophora microphylla, commonly known as kōwhai, weeping kōwhai and small-leaved kōwhai, is a species of tree in the family Fabaceae, endemic to New Zealand. Its range mainly covers the South Island, but it is also present in the North Island. It is known for its vibrant, yellow, drooping flowers and weeping branches. The tūī is especially attracted to the flowers and will travel long distances in search of them. The flowers of the New Zealand kōwhai are unofficially recognised as the national flowers of New Zealand. All parts of the plant, especially the seeds, are poisonous, and the primary alkaloid responsible is cytisine. Despite this potential toxicity, the plant had a variety of uses for Māori and European settlers, as timber and medicinally. Māori used the durable, hardy timber for canoe paddles, farming tools and weapons, and its flexibility made it useful for bird snares and eel spears.