Saururus chinensis, commonly known as Asian lizard's tail,[1] is an herb that grows in low, damp places to more than 1 meter high, endemic to China, India, Japan (including the Ryukyu Islands), Korea, Philippines, and Vietnam. Its leaves are green, papery, ribbed, densely glandular, and ovate to ovate-lanceolate, and (4-)10-20 × (2-)5-10 cm in size. Each flower spike resembles a lizard's tail.