Distribution map of Polygonatum praecox (red dots showing locations found in this study; black dots showing locations identified by specimen examination), P. caulialatum (black triangle) and P. cyrtonema (black square).

 
 
  Part of: Hu Y, Liu Y, Ali M, Wu W, Li X, Chen L, Shao J (2022) Polygonatum praecox (Asparagaceae), a new species from mid-eastern China revealed by morphological and molecular evidence. PhytoKeys 211: 125-138. https://doi.org/10.3897/phytokeys.211.90456