Sophora Tetraptera is a flowering species of tree native to New Zealand, commonly known as kowhai. The word "kowhai" is used as a synonym for Sophora Tetraptera, as it is the Maori name for the tree. Other synonyms include New Zealand laburnum, golden kowhai, four-winged kowhai, and large-flowered kowhai. The tree produces bright yellow flowers in spring and is often used in traditional Maori medicine for its antibacterial and anti-inflammatory properties. Sophora Tetraptera is also a popular ornamental tree in gardens and parks. The variety of synonyms for this tree reflects its importance in New Zealand's cultural and natural heritage.