ABSTRACT

FLAVONOID: diosgenin. SAPONINS: costicoside I, costicoside J. STEROIDS: β-sitosterol, 5α-stigmast-9(11)-en-3β-ol. (Al, F, S) Gupta et al., Phytochemistry, 25, 1899 (1986) (Sap) Singh et al., ibid., 25, 911 (1986)

C. hispida. SESQUITERPENOID: isovaleryloxycostunolide.