Fallopia multiflora var. angulata, a New Combination in the Polygonaceae from China

Yan Hanjing ^[1] ; Fang Zhijian ^[2] ; Zhang Hongyi ^[2] ; Yu Shixiao ^[1]
1. [1] Sun Yat-sen University
  
  Sun Yat-sen University
  
  China
2. [2] Guangdong Pharmaceutical University
  
  Guangdong Pharmaceutical University
  
  China
Localización: Novon: a journal for botanical nomenclature, ISSN 1055-3177, Vol. 21, Nº. 3, 2011, págs. 388-391
Idioma: inglés
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Resumen
- Taxonomic evaluation of Polygonum multiflorum Thunb. var. angulatum S. Y. Liu (Polygonaceae) reveals that a new combination in Fallopia Adans. is necessary, and the name F. multiflora (Thunb.) Haraldson var. angulata (S. Y. Liu) H. J. Yan, Z. J. Fang & Shi Xiao Yu is proposed. The new variety differs from the typical one by its square branchlets with longitudinal ridges that are densely papillate and by its root tubers with a greater abundance of fibers and abnormal vascular strands evident in anatomical cross section.