Piptadenia (Pip·ta·de·nia) (pip”tə-de´ne-ə) a genus of tropical shrubs and trees of the legume family. Selected species Piptadenia gonoacantha (Mart.) J.F. Macbr. Piptadenia micracantha Benth. Piptadenia paniculata Benth. Several species formerly placed in this genus (such as those used to prepare the pyschotomimetic snuffs vilca and yopo/parica) are now considered junior synonyms of Anadenanthera species. Species accepted names Piptadenia a… (More on Piptadenia)