Fig. 1

(A) Tissue of O. aristatus root, stem, and leaf. (B) Content of four flavonoids was 5’-glucose-quercetin (GQU), Eupatorin (EUP), 3’-hydroxy-5,6,7,4’- tetramethoxyflavone (TMF), sinensetin (SEN) respectively. Different letters (a–c) on the bar plots indicate significant difference at p < 0.05 using one-way analysis of variance with Duncan’s multiple-range test.