Published August 15, 2025
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Berberis jiuzhaigouensis (Berberidaceae), a new riparian shrub from northern Sichuan, China
Authors/Creators
- 1. Sichuan Academy of Forestry, Chengdu, China
- 2. Jiuzhaigou National Nature Reserve Administration Bureau, Aba Tibetan and Qiang Autonomous Prefecture, China
- 3. Zhongkai University of Agriculture and Engineering, Guangzhou, China
- 4. Field Museum of Natural History, Chicago, United States of America
Description
Berberis jiuzhaigouensis is herein described as a new deciduous species endemic to riparian habitats in Jiuzhaigou, northern Sichuan, China. Phylogenetic analyses based on complete plastome sequences and 322 nuclear loci consistently recover B. jiuzhaigouensis as a distinct and divergent lineage, genetically separated from all morphologically similar species and most closely related to B. gilgiana. Species delimitation analyses employing both topology-based (SODA) and substitution-based (bPTP, mPTP) frameworks further corroborate its taxonomic distinctiveness. This discovery highlights previously overlooked species diversity within Berberis in the Hengduan Mountains region.
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