Abstract: Abstract "Medo gaengia" is a famous Tibetan medicine used for antifebrile, antirheumatic, and so on, which original plants belong to some species of Saussurea (Compositae). From one of original plants of this medicine, S. tridactyla Sch. -Bip. var. maidugonia S. W. Liou, nine compounds have been isolated and identi-fied as apigenin ( 1 ) , apigenin- 7 - β-D-glucoside (2) , umbelliferonc (3) , umbelliferonc-7-β-D-glucosidc (4) , scopoletin (5) , P-hydroxyacetophenonc (6) , 3-indolylacetic acid (7) , colchicinc (8) and β-sitosterol (9) .

Key words: Saussurea