A new dammarane-type triterpene glycoside, polysciasoside A (1), and three
known compounds have been isolated from the leaves of Polyscias fulva. The
structure of the new compound was established as 12-oxo-3 beta, 16 beta ,20
(S)-trihydroxydammar-24-ene-3-O-alpha -L-rhamnopyranosyl-(1-->2)-beta -D-gl
ucopyranoside.