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The Collaborative International Dictionary
Sophora tetraptera

kowhai \kowhai\ n. A shrub or small tree ( Sophora tetraptera) of New Zealand and Chile having pendulous racemes of tubular golden-yellow flowers; it yields a hard strong wood.

Syn: Sophora tetraptera.

Wikipedia
Sophora tetraptera

Sophora tetraptera, commonly known as large-leaved kōwhai, grows naturally only in the central east of the North Island in New Zealand. S. tetraptera has larger more widely spaced leaves than the other seven species of kōwhai.