Methanol extracts from Inomotosou (Pteris multifida Poiret) were fractionated by column chromatography with many kinds of solvents. Sucrose was isolated from methanol fraction in water soluble part, and β-sitosterol and β-sitosterol-β-glucoside were isolated from chloroform fraction of methanol soluble part in water insoluble part. It was first that β-sitosterol-β-glucoside was isolated from Inomotosou.
