Phytotoxic flavonoids from roots of Stellera chamaejasme L. (Thymelaeaceae)

Isolation and structural identification of eight flavonoids from roots of S. chamaejasme and their phytotoxic activities and influences of auxin on Arabidopsis thaliana seedlings are described. Some flavonoids may act as allelochemicals because they were found in the surrounding soils of S. chamaejasme.