Pulveric acid. 11-deoxopulveric acid, 11-oxopfaffic acid and pfaffoside G, four new hexacyclic nortriterpenoids, have been isolated together with ecdysterone, rubrosterone and pfaffic acid from Pfaffia pulverulenta. The structures of the new compounds were elucidated as 3,11-dioxopfaffan-12-ene-28-oic acid, 3-oxopfaffan-12-ene-28-oic acid, 3-beta-hydroxy-11-oxopfaffan-12-ene-28-oic acid and 3-beta-hydroxypfaffan-12-ene-28-oic acid-(28 --> 1)-beta-D-glucurono-pyranosyl ester, respectively. C-13 NMR signals were fully assigned using 2D NMR techniques.