Abstract Two new triterpenoids from the flowers of Camellia japonica have been identified as 3β,18β-dihydroxy-28-norolean-12-en-16-one and 18β-hydroxy-28-norolean-12-ene-3,16-dione. A large amount of 3β-hydroxy-28-noroleana-12,17-dien-16-one was also obtained.