Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 782 No. 1: 28 Oct. 2026
Type: Article
Published: 2026-10-28
DOI: 10.11646/phytotaxa.782.1.4
Page range: 61-72
Abstract views: 21
PDF downloaded: 0

Sinosenecio primulifolius (Asteraceae), a new species from Chongqing, China

1School of Ecology; Sun Yat-sen University; Shenzhen 518107; China; 2State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Stress Biology; Sun Yat-sen University; Guangzhou 510275; China
3Chongqing Key Laboratory for the Utilization and Evaluation of Special Chinese Materia Medica Resources; Chongqing Academy of Chinese Materia Medica; Chongqing 400065; China; 4Daba Mountain Medicinal Animals and Plants Chongqing Observation and Research Station; Chengkou 405900; China
1School of Ecology; Sun Yat-sen University; Shenzhen 518107; China; 2State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Stress Biology; Sun Yat-sen University; Guangzhou 510275; China
1School of Ecology; Sun Yat-sen University; Shenzhen 518107; China; 2State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Stress Biology; Sun Yat-sen University; Guangzhou 510275; China
1School of Ecology; Sun Yat-sen University; Shenzhen 518107; China; 2State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Stress Biology; Sun Yat-sen University; Guangzhou 510275; China
Eudicots Asteraceae Sinosenecio new taxon taxonomy

Abstract

Sinosenecio primulifolius, a new species from Chongqing Municipality, southwestern China, is described and illustrated. It is characterized by the scapigerous habit, ecalyculate capitula, Primula-like, membranous, palmately 7-veined leaves with large subdeltoid mucronulate teeth along the margins and conspicuous adaxial venation, and smooth, glabrous achenes with pappus. Phylogenetic analysis based on nrITS sequences places the new species in the S. oldhamianus–Nemosenecio clade of subtribe Tephroseridinae. This affiliation is further supported by its chromosome number, 2n = 48, and polarized and radial anther endothecial cell wall thickenings. Within this clade, S. primulifolius is phylogenetically allied with S. bodinieri, S. confervifer, S. nanchuanicus, S. tongziensis, S. fanjingshanicus, S. changii, and S. lichuanensis, but is readily distinguished from these relatives by its distinctive leaf morphology.

References

  1. Capella-Gutiérrez, S., Silla-Martínez, J.M. & Gabaldón, T. (2009) trimAl: a tool for automated alignment trimming in large-scale phylogenetic analyses. Bioinformatics 25: 1972–1973. https://doi.org/10.1093/bioinformatics/btp348
  2. Chen, B., Liu, Y., Luo, J.X., Wang, Q. & Yang, Q.E. (2022) Sinosenecio jiuzhaigouensis (Asteraceae, Senecioneae), a new species from Sichuan, China. Phytotaxa 544 (3): 289–294. https://doi.org/10.11646/phytotaxa.544.3.3
  3. Chen, Y.L. (1999) Compositae (5): Senecioneae. In: Editorial Committee of Flora Reipublicae Popularis Sinicae (Ed.) Flora Reipublicae Popularis Sinicae, vol. 77 (1). Science Press, Beijing, pp. 1–326.
  4. Chen, Y.L., Liu, Y., Yang, Q.-E., Nordenstam, B. & Jeffrey, C. (2011) Sinosenecio B. Nordenstam. In: Wu, Z.Y., Raven, P.H. & Hong, D.Y. (Eds.) Flora of China, vols. 20–21. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis, pp. 464–481.
  5. Doyle, J.J. & Doyle, J.L. (1987) A rapid DNA isolation procedure for small quantities of fresh leaf tissue. Phytochemical Bulletin 19: 11–15.
  6. Hoang, D.T., Chernomor, O., von Haeseler, A., Minh, B.Q. & Vinh, L.S. (2018) UFBoot2: improving the ultrafast bootstrap approximation. Molecular Biology and Evolution 35: 518–522. https://doi.org/10.1093/molbev/msx281
  7. Jeffrey, C. & Chen, Y.L. (1984) Taxonomic studies on the tribe Senecioneae (Compositae) of Eastern Asia. Kew Bulletin 39: 205–446. https://doi.org/10.2307/4110124
  8. Jin, Z.C., Du, S.Y., Yi, Y.M. & Chen, Y.S. (2025) Sinosenecio lichuanensis (Asteraceae, Senecioneae), a new species from Hubei, China. Phytotaxa 736 (1): 49–58. https://doi.org/10.11646/phytotaxa.736.1.4
  9. Katoh, K. & Standley, D.M. (2013) MAFFT multiple sequence alignment software version 7: improvements in performance and usability. Molecular Biology and Evolution 30: 772–780. https://doi.org/10.1093/molbev/mst010
  10. Levan, A., Fredga, K. & Sandberg, A.A. (1964) Nomenclature for centromeric position on chromosomes. Hereditas 52: 201–220. https://doi.org/10.1111/j.1601-5223.1964.tb01953.x
  11. Liu, Y. (2010) Systematics of the genus Sinosenecio B. Nord. (Asteraceae). Ph.D. thesis, Institute of Botany, Chinese Academy of Sciences, Beijing, 277 pp.
  12. Liu, Y. & Yang, Q.E. (2011a) Cytology and its systematic implications in Sinosenecio (Senecioneae-Asteraceae) and two closely related genera. Plant Systematics and Evolution 291: 7–24. https://doi.org/10.1007/s00606-010-0365-3
  13. Liu, Y. & Yang, Q.E. (2011b) Floral micromorphology and its systematic implications in the genus Sinosenecio (Senecioneae-Asteraceae). Plant Systematics and Evolution 291: 243–256. https://doi.org/10.1007/s00606-010-0385-z
  14. Liu, Y. & Yang, Q.E. (2012) Sinosenecio jiangxiensis (Asteraceae), a new species from Jiangxi, China. Botanical Studies 53: 401–414.
  15. Liu, Y., Xu, Y. & Yang, Q.E. (2019) Sinosenecio peltatus (Asteraceae, Senecioneae), a remarkably distinctive new species from Guangdong, China. Phytotaxa 406 (3): 206–212. https://doi.org/10.11646/phytotaxa.406.3.7
  16. Minh, B.Q., Schmidt, H.A., Chernomor, O., Schrempf, D., Woodhams, M.D., von Haeseler, A. & Lanfear, R. (2020) IQ-TREE 2: new models and efficient methods for phylogenetic inference in the genomic era. Molecular Biology and Evolution 37: 1530–1534. https://doi.org/10.1093/molbev/msaa015
  17. Nordenstam, B. (1978) Taxonomic studies on the tribe Senecioneae (Compositae). Opera Botanica 44: 1–84.
  18. Nordenstam, B. & Pelser, P.B. (2011) Notes on the generic limits of Sinosenecio and Tephroseris (Compositae-Senecioneae). Compositae Newsletter 49: 1–7.
  19. Peng, J.Y., Zhang, D.G., Deng, T., Huang, X.H., Chen, J.T., Meng, Y., Wang, Y. & Zhou, Q. (2022) Sinosenecio yangii (Asteraceae), a new species from Guizhou, China. PhytoKeys 210: 1–13. https://doi.org/10.3897/phytokeys.210.89480
  20. Qu, T., Zheng, X., Chen, X., Zhang, Y., Zhang, T., Li, B., Huang, K. & Fu, Z. (2025) Sinosenecio yaanensis (Asteraceae, Senecioneae), a new species from western Sichuan, China. PhytoKeys 262: 129–144. https://doi.org/10.3897/phytokeys.262.161687
  21. Reichenbach, H.G.L. (1841) Der deutsche Botaniker, vol. 1. Das Herbarienbuch: Erklärung des natürlichen Pflanzensystems, systematische Aufzählung, Synonymik und Register der bis jetzt bekannten Pflanzengattungen zur erleichterten Aufsuchung der Verwandtschaft jeder einzelnen Gattung und Untergattung und zur schnellsten Auffindung derselben im Herbarium. Arnoldischen Buchhandlung. In der Arnoldischen Buchhandlung, Dresden & Leipzig, 236 pp. https://doi.org/10.5962/bhl.title.7694
  22. Ren, C., Hong, Y., Wang, L. & Yang, Q.E. (2017) Generic recircumscription of Parasenecio (Asteraceae: Senecioneae) based on nuclear ribosomal and plastid DNA sequences, with descriptions of two new genera. Botanical Journal of the Linnean Society 184: 418–443. https://doi.org/10.1093/botlinnean/box034
  23. She, S.Q., Zhou, X., Xie, W.Y., Yao, S.H., Wang, S.P., Zhu, H.M., Chen, Z.H., Jin, X.F. & Xu, Y.L. (2025) Sinosenecio ranunculoides (Asteraceae), a new species from Northeastern Jiangxi, Eastern China. Phytotaxa 725 (2): 173–183. https://doi.org/10.11646/phytotaxa.725.2.4
  24. Su, X.J., Fei, W.Q., Zhao, D., Liu, Y. & Yang, Q.E. (2023a) Sinosenecio pingwuensis (Asteraceae, Senecioneae), a new species from northern Sichuan, China. PhytoKeys 218: 109–116. https://doi.org/10.3897/phytokeys.218.97485
  25. Su, X.J., Fei, W.Q., Zhao, D., Liu, Y. & Yang, Q.E. (2023b) Sinosenecio minshanicus (Asteraceae, Senecioneae), a new species from south-eastern Gansu and northern Sichuan, China. PhytoKeys 218: 79–91. https://doi.org/10.3897/phytokeys.218.97475
  26. Wang, L.Y., Pelser, P.B., Nordenstam, B. & Liu, J.Q. (2009) Strong incongruence between the ITS phylogeny and generic delimitation in the Nemosenecio-Sinosenecio-Tephroseris assemblage (Asteraceae: Senecioneae). Botanical Studies 50: 435–442.
  27. White, T.J., Bruns, T., Lee, S. & Taylor, J.W. (1990) Amplification and direct sequencing of fungal ribosomal RNA genes for phylogenetics. In: Innis, M.A., Gelfand, D.H., Sninsky, J.J. & White, T.J. (Eds.) PCR protocols: a guide to methods and applications. Academic Press, New York, pp. 315–322. https://doi.org/10.1016/B978-0-12-372180-8.50042-1
  28. Zhang, R.B., Deng, T., Liu, Y., Xie, D.J., Wei, R.X., He, L., Dou, Q.L. & Qian, Z.M. (2025) Sinosenecio tongziensis (Asteraceae), a new species from north Guizhou, China. PhytoKeys 252: 187–196. https://doi.org/10.3897/phytokeys.252.141719
  29. Zou, C.Y., Liu, Y. & Liu, Y. (2020) Sinosenecio ovatifolius (Asteraceae), a new species from Guangxi, China. Phytotaxa 460 (2): 149–159. https://doi.org/10.11646/phytotaxa.460.2.5

How to Cite

Liu, Z.-C., Liu, X., Zhao, Y.-X., Liu, Y. & Ye, J.-F. (2026) Sinosenecio primulifolius (Asteraceae), a new species from Chongqing, China. Phytotaxa 782 (1): 61–72. https://doi.org/10.11646/phytotaxa.782.1.4