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Peer-reviewedCC BYPhytoKeys

Clematis pedunculata (Ranunculaceae), a new species from Korea previously confused with C. fusca var. violacea.

  • Beom Kyun Park1
  • Dong-Hyuk Lee2
  • Sang-Chul Kim3
  • Dong Chan Son4
4 affiliations
  1. 1DMZ Forest Biological Resources Research Division, Korea National Arboretum, Yanggu 24564, Republic of Korea DMZ Forest Biological Resources Research Division, Korea National Arboretum Yanggu Republic of Korea.
  2. 2Forest Biodiversity Conservation Research Division, Korea National Arboretum, Pocheon 11186, Republic of Korea Forest Biodiversity Conservation Research Division, Korea National Arboretum Pocheon Republic of Korea https://ror.org/02q3j1823.
  3. 3Biodiversity Conservation Research Division, National Institute of Biological Resources, Incheon 22689, Republic of Korea Biodiversity Conservation Research Division, National Institute of Biological Resources Incheon Republic of Korea https://ror.org/012a41834.
  4. 4Forest Biodiversity Research Division, Korea National Arboretum, Pocheon 11186, Republic of Korea Forest Biodiversity Research Division, Korea National Arboretum Pocheon Republic of Korea https://ror.org/02q3j1823.
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Abstract

During a taxonomic revision of Clematis in Korea, Korean plants previously assigned to C. fusca var. violacea Maxim. were found to comprise two morphologically distinct groups. To assess the taxonomic significance of this variation, living plants and 452 herbarium specimens were examined, and maximum-likelihood phylogenetic analyses were performed based on sequences from the nuclear ribosomal internal transcribed spacer (ITS), the plastid matK gene, and the atpB-rbcL intergenic spacer. One of these groups is described here as Clematis pedunculata B. K. Park, sp. nov. The new species is distinguished from other Korean members of the C. fusca complex by a combination of an androdioecious sexual system, smooth to shallowly grooved stem internodes that are sparsely villous to glabrate, conspicuous peduncles 1.5-12.1 cm long, and stamens bearing short whitish hairs. In the ITS phylogeny, the three accessions of C. pedunculata formed a moderately supported clade distinct from the sampled Korean members of the C. fusca complex, although their deeper phylogenetic placement was weakly resolved. In the combined plastid phylogeny, they formed a distinct clade with moderate support, separate from all sampled Korean members of the complex. The concordant morphological and molecular evidence supports the recognition of C. pedunculata as a distinct species currently known only from South Korea.

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Cite

BibTeXRIS
BibTeX
@article{park2026clematis,
  title = {{Clematis pedunculata (Ranunculaceae), a new species from Korea previously confused with C. fusca var. violacea.}},
  author = {Beom Kyun Park and Dong-Hyuk Lee and Sang-Chul Kim and Dong Chan Son},
  journal = {PhytoKeys},
  year = {2026},
  month = oct,
  doi = {10.3897/phytokeys.280.213893},
  url = {https://europepmc.org/article/MED/42909397},
  note = {CC BY},
}
RIS
TY  - JOUR
TI  - Clematis pedunculata (Ranunculaceae), a new species from Korea previously confused with C. fusca var. violacea.
AU  - Beom Kyun Park
AU  - Dong-Hyuk Lee
AU  - Sang-Chul Kim
AU  - Dong Chan Son
PY  - 2026
DA  - 2026/10/13
JO  - PhytoKeys
DO  - 10.3897/phytokeys.280.213893
UR  - https://europepmc.org/article/MED/42909397
AB  - During a taxonomic revision of Clematis in Korea, Korean plants previously assigned to C. fusca var. violacea Maxim. were found to comprise two morphologically distinct groups. To assess the taxonomic significance of this variation, living plants and 452 herbarium specimens were examined, and maximum-likelihood phylogenetic analyses were performed based on sequences from the nuclear ribosomal internal transcribed spacer (ITS), the plastid matK gene, and the atpB-rbcL intergenic spacer. One of these groups is described here as Clematis pedunculata B. K. Park, sp. nov. The new species is distinguished from other Korean members of the C. fusca complex by a combination of an androdioecious sexual system, smooth to shallowly grooved stem internodes that are sparsely villous to glabrate, conspicuous peduncles 1.5-12.1 cm long, and stamens bearing short whitish hairs. In the ITS phylogeny, the three accessions of C. pedunculata formed a moderately supported clade distinct from the sampled Korean members of the C. fusca complex, although their deeper phylogenetic placement was weakly resolved. In the combined plastid phylogeny, they formed a distinct clade with moderate support, separate from all sampled Korean members of the complex. The concordant morphological and molecular evidence supports the recognition of C. pedunculata as a distinct species currently known only from South Korea.
SN  - 1314-2011
SN  - 1314-2003
ER  -