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Issue: Vol. 726 No. 3: 4 Nov. 2025
Type: Article
Published: 2025-11-04
DOI: 10.11646/phytotaxa.726.3.4
Page range: 165-175
Abstract views: 183
PDF downloaded: 8

Corydalis kangxianensis (Papaveraceae), a new species from the western Qinling Mountains, southern Gansu, China

School of Life Sciences, Central China Normal University, Bio-resources key Laboratory of Shaanxi Province, Shaanxi University of Technology, Hanzhong 723001, Shaanxi Province, P. R. China
School of Life Sciences, Central China Normal University
School of Life Sciences, Central China Normal University
Liuba County Forestry Bureau, Hanzhong, Shaanxi Province, P. R. China
School of Ecology, Lanzhou University, Gansu Province, P. R. China, and: Administration of Gansu Anxi Extra-Arid Desert National Nature Reserve, Gansu Province, P. R. China
Eudicots IUCN Red List Qinling Mountains region taxonomy

Abstract

Corydalis kangxianensis (Papaveraceae), a new species from Kangxian county in southern Gansu, China, is described and illustrated. This new species clearly belongs to Corydalis sect. Incisae sensu Zhang et al. (2008). It is similar to C. pseudoamplisepala D.Wang, but differs in the outer petals being broadly rounded (vs. ovate) and obtuse to emarginate (vs. subacute) at apex, having much smaller sepals (0.8–1.4 × 0.6–0.8 vs. 1.5–2.0 × 1.0–1.5 mm), and capsules that are narrowly to broadly obovoid (vs. broadly obovoid). It is also similar to C. amplisepala Z.Y.Su & Lidén and C. austroshaanxiensis D.Wang, but it is readily distinguishable from both by its outer petals without crest (vs. with crest). Molecular phylogenetic analysis further supports its recognition as a distinct species. An identification key to C. kangxianensis and related species is provided. This study underscores the need for further botanical surveys in remote and less-explored mountainous regions to better document the species diversity of Corydalis.

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How to Cite

Wang, D., Xu, X., Chen, Y., Dai, Q. & Wang, L. (2025) Corydalis kangxianensis (Papaveraceae), a new species from the western Qinling Mountains, southern Gansu, China. Phytotaxa 726 (3): 165–175. https://doi.org/10.11646/phytotaxa.726.3.4