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ORIGINAL RESEARCH article

Front. Plant Sci.
Sec. Plant Systematics and Evolution
Volume 15 - 2024 | doi: 10.3389/fpls.2024.1453759

Youngia lushanensis, a new species of Asteraceae from Sichuan, China, inferred from morphology and nrITS phylogeny

Provisionally accepted
Yulan Peng Yulan Peng 1*Xuemei Pu Xuemei Pu 1*Xianhua Xiong Xianhua Xiong 2*Lijie Cheng Lijie Cheng 3*
  • 1 Chengdu Institute of Biology, Chinese Academy of Sciences (CAS), Chengdu, China
  • 2 Mianyang Tearchers’ Colleage, Mianyang, China
  • 3 Chengdu University of Technology, Chengdu, Chengdu Institute of Biology, Chinese Academy of Sciences (CAS), Chengdu, Sichuan Province, China

The final, formatted version of the article will be published soon.

    Youngia lushanensis (Asteraceae), a new species of Youngia, is described and illustrated from Lushan in Sichuan, Southwest China. Its systematic position is evaluated based on a molecular phylogenetic analysis of the nuclear ribosomal ITS and on morphological comparison with related species. It is morphologically similar to Y. purpimea and Y. szechuanica, with purplish red abaxially leaves. But it differs from the latter two in that its caudex are glabrous, leaf margins are sparsely dentate, and being glabrous on both surfaces, 9-11 florets in each capitulum, and inner phyllaries are crested. Phylogenetic analysis based on ITS also showed this new species is closely related with Y. purpimea and Y. szechuanica. The three species Y. lushanensis Y. purpimea and Y. szechuanica, formed a basal group of Youngia, which is distributed in moist slopes in Southwest China..

    Keywords: Youngia, Asteraceae, morphology, ITS, new species

    Received: 24 Jun 2024; Accepted: 03 Oct 2024.

    Copyright: © 2024 Peng, Pu, Xiong and Cheng. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence:
    Yulan Peng, Chengdu Institute of Biology, Chinese Academy of Sciences (CAS), Chengdu, China
    Xuemei Pu, Chengdu Institute of Biology, Chinese Academy of Sciences (CAS), Chengdu, China
    Xianhua Xiong, Mianyang Tearchers’ Colleage, Mianyang, China
    Lijie Cheng, Chengdu University of Technology, Chengdu, Chengdu Institute of Biology, Chinese Academy of Sciences (CAS), Chengdu, 610041, Sichuan Province, China

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