Alocasia odora (also called night-scented lily, Asian taro or giant upright elephant ear) is a flowering plant native to East and Southeast Asia (Japan, China, Indochina, Assam, Bangladesh, Borneo). In Manipur, local name is Hoomu. Alocasia odora (called Ray) can be used as medicine for the treatment of common cold in North Vietnam. This plant is grows to about 0.5–1.6 m high, with rhizomes of about 4–10 m high and 3–5 cm wide. The leaves are big and blade-shaped, ovate, light green with cordate base. The petioles are 0.3–1.0 m long, with the lower parts clasped around the stem.