Oxalisxishuiensis (Oxalidaceae), a new species from Danxia landforms in Guizhou, China

Yan-Bing Yang; He Li; Ming-Tai An; Lang Huang; Guo-Xiong Hu; Cheng-Hua Yang; Zheng-Xian Dai

doi:10.3897/phytokeys.239.119046

Oxalisxishuiensis (Oxalidaceae), a new species from Danxia landforms in Guizhou, China

PhytoKeys. 2024 Mar 27:239:267-273. doi: 10.3897/phytokeys.239.119046. eCollection 2024.

Authors

Yan-Bing Yang^{1

2}, He Li^{1

2}, Ming-Tai An³, Lang Huang¹, Guo-Xiong Hu³, Cheng-Hua Yang¹, Zheng-Xian Dai⁴

Affiliations

¹ Key Laboratory of National Forestry and Grassland Administration on Biodiversity Conservation in Karst Mountainous Areas of South-western China, Guizhou Academy of Forestry, Guiyang 55005, Guizhou, China.
² Fanjingshan National Observation and Research Station of Chinese Forest Ecosystem, Jiangkou 554400, Guizhou, China.
³ College of Forestry, Guizhou University, Guiyang 550025, Guizhou, China.
⁴ Center for Biodiversity and Natural Conservation, Guizhou University, Guiyang 550025, Guizhou, China.

Abstract

Oxalisxishuiensis, a new species of Oxalidaceae from Danxia landforms of Xishui County, Guizhou, China, is described and illustrated. It is morphologically similar to O.wulingensis by the two lateral leaflets arranged at about 180° angle and oblong pink petals with lilac veins, but clearly differs from the latter by leaflets almost as long as wide, obliquely obcordate lateral leaflets, shorter peduncles, longer capsule (1.2-1.5 cm vs. 0.5-0.7 cm) and alveolate seeds.

Keywords: China; Danxia landforms; Oxalidaceae; Oxalis; Xishui.

Yan-Bing Yang, He Li, Ming-Tai An, Lang Huang, Guo-Xiong Hu, Cheng-Hua Yang, Zheng-Xian Dai.

Grants and funding

Survey and assessment of newly added national Key protected wild plant resources in Guizhou Province (Second stage) (MCHC–ZD20232020), Second comprehensive scientific survey of the Guizhou Xishui National Nature Reserve.