Pteroxygonum giraldii
''Pteroxygonum giraldii'' is a species of flowering plant in the family Polygonaceae, endemic to the China, Chinese provinces of Gansu, Hebei, Henan, Hubei, Shaanxi, Shanxi, and Sichuan. It is found at altitudes of . It grows to more than in hei ...
''.Antioxidant Flavone Glycosides from the Root of Pteroxygonum giraldii. Bao-Lin Li, Zhan-Jun Yang, Lin-Ling Jiang, Xi-Quan Zhang, Hong-Mei Gu, Hui-Chun Wang and Xian-Hua Tian, Bull. Korean Chem. Soc. 2009, Vol. 30, No. 7, pp. 1459-1462,