Supreme Phoenix Oolong (2oz) Save $4.00 Gynostemma Pentaphyllum (Jiao Gu Lan) 4oz Product Information From Wikipedia, the free encyclopedia: Gynostemma pentaphyllum, also called jiaogulan ( Chinese : 绞 股 蓝 ; pinyin : jiǎogǔlán , literally "twisting-vine orchid" [1] ) is an herbaceous vine of the family Cucurbitaceae ( cucumber or