[1][2] It occurs across much of mainland eastern-northeastern China, the Amur River valley in Russia, the Korean Peninsula (including Ulleungdo Island),[3] and most of Japan, with exceptions of Hokkaidō and the Ryukyu Islands.

[2][4] It has been considered the most-common of the true frogs on the Korean Peninsula, and has been hunted for food there for centuries, and, in modern times, used as an experimental animal.

Although relatively tolerant of human interference, it is increasingly threatened by hunting and water pollution.

[7] The dorsal colouration varies from grey to greyish-olive, olive, and green.

Males have a paired vocal sac and nuptial pads on the first finger.