A .beta.-D-glucopyranoside and an .alpha.-L-rhamnopyranoside of 2,3-dihydro-7-hydroxy-2-(4''-hydroxy-3''-methoxyphenyl)-3-hydroxymethyl-5-benzofuranopropanol, an .alpha.-L-rhamnopyranoside, a .beta.-D-xylopyranoside and a .beta.-D-glucopyranoside of 1-(4-hydroxy-3-methoxyphenyl)-2-[4-(3-hydroxypropyl)-2-hydroxyphenoxy]-1,3-propane-diol, two .beta.-D-glucopyranosides and one .alpha.-L-arabinofuranoside of (+)-isolariciresinol, a .beta.-D-glucoside of (-)-seco-isolariciresinol and (+)-catechin and the 3''-O-.beta.-D-glucopyranosides of quercetin and 2,3-dihydroquercetin, respectively, were isolated and identified from needles of P. sylvestris L.