Youngia jiulongensis (Crepidinae, Cichorieae, Asteraceae), a New Species from Sichuan, China

• Yu-Lan Peng ^[1] ; Xin-Fen Gao ^[1] ; Li-Bing Zhang ^[2]
  1. [1] Chinese Academy of Sciences

     Chinese Academy of Sciences

     China

     
  2. [2] Missouri Botanical Garden U.S.A.
• Localización: Novon: a journal for botanical nomenclature, ISSN 1055-3177, Vol. 25, Nº. 3, 2017, págs. 298-301
• Idioma: inglés
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• Resumen

  • Youngia jiulongensis Y. L. Peng, X. F. Gao & Li Bing Zhang, a new species of Asteraceae from western Sichuan, China, is described. This new species is similar to Y. mairei (H. Lév.) Babc. & Stebbins and Y. pilifera C. Shih in having blackish brown achenes, a white pappus, and fewer capitula, but distinct from the latter two in having a taller stature (28–50 cm vs. 8–30 cm), two or three well-developed, undivided caudical leaves, sparsely toothed leaf margins, acute leaf apices, long non-winged petioles, reduced pubescence on the whole plant, glabrous phyllaries, and midveins of all inner phyllaries plane.