Apios fortunei

Apios fortunei, commonly known as hodo, hodoimo, groundnut, or potatobean, is a tuber-forming member of the bean family.

The plant is a perennial climbing vine. The leaves are ovate or lanceolate, pinnate with 3–7 leaflets, and 3–7 centimetres (1–3 in) long. The flowers are whitish green, sometimes tinted light yellowish with a red-to-purple wing petal edge, or sulphurous green with rosy wing petals; they form pseudoracemes or terminal panicles, 6–26 centimetres (2+1⁄2–10 in) long. The fruit is a linear legume, 7–8 cm long and 5–6 millimetres (3⁄16–1⁄4 in) wide.