Supplementary description of Oreocharis humilis and Oreocharis sichuanensis and a new record species of Oreocharis in Chongqing

Based on literature data and model specimen research, combined with field investigation, specimen collection and morphological anatomy, the morphological characteristics and phenological stages of Oreocharis humilis (W.T.Wang) Mich. Möller & A. Weber and Oreocharis sichuanensis (W.T.Wang) Mich.Möller & A.Weber were supplemented and described respectively, and color photos were provided for identification and comparison. In addition, O. crenata (K.Y.Pan) Mich.Möller & A.Weber was reported as a newly recorded species in Chongqing.