Abstract:In order to improve the morphological description of Firmiana danxiaensis, the macroscopic morphological characteristics of plants in four distribution points on Danxia and Karst landforms were compared. Specimens were collected at the three known distribution points (Danxia Mountain, Nanxiong, and Yingde) and the newly discovered distribution point (Shixing) during the flowering and fruiting periods. The results showed that there were obvious differences from the original description in petiole, leaf, inflorescence, stamens, follicle, calyx, etc. The original description lacked aborted stamens, aborted ovary, color changes in calyx, pericarp and seed coat during development. Therefore, the morphological description of F. danxiaensis was revised or supplemented, and pictures were also provided.