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New distribution record of northern lineage plant of Stellaria filicaulis(Caryophyllaceae) from South Korea

  • Dong-Pil Jin (Division of Urban Biodiversity, Sejong National Arboretum) ;
  • Chae Eun Lim (Climate Change and Environmental Biology Research Division, National Institute of Biological Resources) ;
  • Sunhee Sim (Species Diversity Research Division, National Institute of Biological Resources) ;
  • Jin Dong Lee (The Society for Korean Peninsula Plants) ;
  • Inbae Lee (The Society for Korean Peninsula Plants) ;
  • Kwuidong Jung (The Society for Korean Peninsula Plants) ;
  • Jung-Hyun Kim (Korean Wild Plant Institute)
  • Received : 2023.05.12
  • Accepted : 2023.09.19
  • Published : 2023.11.30

Abstract

A northern lineage plant, Stellaria filicaulis (Caryophyllaceae), was newly found in Yeoncheon-gun, Gyeonggi-do of South Korea. This species is distributed in China, Japan, Korea, Mongolia, and Russia. On the Korean Peninsula, St. filicaulis, however, has been known to grow in North Korea. Species identification was confirmed using morphological characteristics and DNA sequence data, while comparing with materials obtained from herbarium specimens. Stellaria filicaulis is distinguished from St. longifolia by having smooth surface of stem, petals about twice longer than sepals. On the neighbor-joining tree, St. filicaulis formed a clade, and the species is closely related to St. longifolia of the Parviflorae clade. Details of the morphological characters, the type specimens, voucher specimens data, and photographs of St. filicaulis in South Korea are presented. In addition, it is likely that a new habitat will be found by plant biodiversity field surveys through the middle part of the Korean Peninsula. Further research is needed to determine its population size, distribution, and threats, as well as identify appropriate locations for conservation collection of germplasm.

Keywords

Acknowledgement

This work was supported by a grant from the National Institute of Biological Resources, funded by the Ministry of Environment of the Republic of Korea (NIBR202102103, NIBR202212101, NIBR202304101).

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