The rhizomes of Serratula strangulata yielded three glyceroglycolipids, i.e. 1,2-di-O-(9Z,12Z,15Z-octadecatrienoyl)-3-O-(6-amine-6-deoxy-alpha-D-glucosyl)-glycerol, 1,2-di-O-(9Z,12Z,15Z-octadecatrienoyl)-3-O-(6-p-hydroxy-phenyl-propionamido-6-deoxy-alpha-D-glucosyl)-glycerol and