Research Paper

Oxalis shibeishanensis (Oxalidaceae), a new species from Yunnan, Southwest China

Ye Tian, Feng Yang, Xiao-Lan Liu, Huan-Chong Wang

Published on: 09 July 2020

Page: 360 - 363

DOI: 10.6165/tai.2020.65.360


Oxalis shibeishanensis Huan C. Wang & Y. Tian (Oxalidaceae), belonging to O. subsect. Oxalis, is described and illustrated as a new species endemic to Yunnan, Southwest China. It is most similar to O. obtriangulata, but clearly differs from the latter by its 1.5–3 cm long, 3–9 cm wide leaflets with broadly cuneate base and not emarginate apex, 2-flowered inflorescences, narrowly ovate to broadly lanceolate sepals, and the petals being bifid at the apex.

Keyword: China, endemism, new species, Oxalidaceae, Oxalis, Oxalis obtriangulata

Literature Cited

Aoki, S., T. Ohi-Toma and J. Murata. 2018. Addition to aoki et al. (2017): Phylogenetic position of Oxalis trilliifolia in subsection oxalis (Oxalidaceae). Phytotaxa 356(3): 238–240.
DOI: 10.11646/phytotaxa.356.3.6View Article Google Scholar

Aoki, S., T. Ohi-Toma and J. Murata. 2019. Taxonomic revision of Oxalis subsect. Oxalis (Oxalidaceae). Acta Phytotaxon. Geobot. 70(3): 159–172.

Azkue, D.D. 2000. Chromosome diversity of South American Oxalis (Oxalidaceae). Bot. J. Linn. Soc. 132(2): 143–152.
DOI: 10.1111/j.1095-8339.2000.tb01210.xView Article Google Scholar

Deng, T., D. G. Zhang, Z. Liu, G. C. Tucker, H. Sun, J. Wen and Z. L. Nie. 2013. Oxalis wulingensis (Oxalidaceae), an unusual new species from central China. Syst. Bot. 38(1): 154–161.
DOI: 10.1600/036364413X661953View Article Google Scholar

Huang, C.C., B. X. Huang and L.R. Xu. 1998. Oxalidaceae. In: Xu, L.R. and C. C. Huang (eds.), Fl. Reipubl. Popularis Sin. 43(1): 3–17. Science Press, Beijing, China.

Liu, Q. R. and M. F. Watson. 2008. Oxalidaceae. In: Wu, C.Y. and P.H. Raven. (eds.), Flora of China, 17: 2–6. Science Press, Beijing, China & Missouri Botanical Garden Press, St. Louis, USA.

Lourteig, A. 2000. Oxalis L. subge?neros Monoxalis (Small) Lourt., Oxalis y Trifidus Lourt. Bradea 7: 201–629.

Sidwell, K. and S. Knapp. 2002. A new species of Oxalis (Oxalidaceae ) from El Salvador. Novon 12(1): 90–93.
DOI: 10.2307/3393246View Article Google Scholar

Vaio, M., A. Gardner, P. Speranza, E. Emshwiller and M. Guerra. 2016. Phylogenetic and cytogenetic relationships among species of Oxalis section Articulatae (Oxalidaceae). Plant Syst. Evol. 302(9): 1253–1265.
DOI: 10.1007/s00606-016-1330-6View Article Google Scholar