Ko e sākisi (mei he circus, lea fakapilitānia) ko e fuʻu ʻakau siʻi mo e vao ia, ʻomi ki Tongá ni. ʻOku ui foki ko e Euphorbia hirta L., Euphorbia pilulifera. ʻOku ne tupu ʻi he feituʻu mafana kotoa ʻo māmani.