Sophora tetraptera

Sophora tetraptera (literal four-winged sophora) is a species of dicotyledonous plants of the family Fabaceae, native to New Zealand. Locally the species is called kōwhai, a term that also refers to other species of the genus Sophora.

The four-winged kowhai is a small yellow-flowered tree, endemic to the North Island of New Zealand. It is sometimes cultivated as an ornamental plant.

It is a poisonous plant in all its parts, especially the seeds, which contain cytosine.

Taxonomy
S tetraptera J F Mill. (Edwardsia tetraptera)