Senna gaudichaudii, known as Gaudichaud's senna and as heuhiuhi in Hawaiian, is a species of flowering plant in the legume family, Fabaceae, that is endemic to Queensland, Australia and the Pacific Islands. It is a shrub, reaching a height of 0.5–4 m (1.6–13.1 ft). In Hawaii, heuhiuhi inhabits low shrublands, dry forests, coastal mesic forests and mixed mesic forests at elevations of 5–920 m (16–3,018 ft) on most main islands.