Acorusshannai (Acoraceae), a new species from Southern China.

ABSTRACT: Acorusshannai (Acoraceae) is a commonly used seasoning in southern China. It was previously misidentified as A.macrospadiceus (Yamam.) F. N. Wei & Y. K. Li before. Through comparison of morphological characteristics, distribution locations, and type specimen, we determined that the elevation of A.gramineusvar.macrospadiceus Yamam to species status was incorrect. Therefore, we propose a formal description of a new species following nomenclature regulations. Based on morphological and plastid genomic data, this study formally describes and illustrates Acorusshannai, distributed in the Qiandongnan area of Guizhou Province and its surroundings, confirming it as a new species within the genus Acorus. This species is morphologically and phylogenetically distinct from

SUBMITTER: Cheng Z 

PROVIDER: S-EPMC11773349 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature