Sweet Tea Vine
Gynostemma pentaphyllum (Thunb.) Makino
[Cucurbitaceae]
Ama·cha·zuru (アマチャヅル, 甘茶蔓)
ama = sweet, cha = tea, zuru = vine
Distribution: Japan (from Hokkaido to Ryukyu), Korea, China, Malaysia, India
Gynostemma pentaphyllum in Hokkaido

In Hokkaido University Campus on September 19 2007.