A flavonid glycoside (I), C21H20O11·3H2O, m.p. 243∼244°(decomp.), was isolated in pure form from the leaves of Acer cissifolium K.KOCH, and identified as luteolin 4'-β-D-glucoside, first isolated by Horhammer, et al.5) from Spartium junceum L. (Leguminosae).
