Research Paper

Raphiocarpus flavus (Gesneriaceae), a new species from the limestone karst areas, Northern Vietnam

Zi-Bing Xin, Yi-Gang Wei, Stephen Maciejewski, Jia-Xin Fu, Xiao-Mao Qian, Fang Wen, Truong Van Do

Published on: 11 July 2026

Page: 592 - 596

DOI: 10.6165/tai.2026.71.592

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    Abstract

    Raphiocarpus flavus Y.G.Wei, F.Wen, Z.B.Xin, & T.V.Do, a new species from Ninh Bình Province and Hanoi City, Vietnam, is described and illustrated. This species is morphologically similar to R. asper (Drake) B.L.Burtt but can be distinguished by its stem height, absence of scabrous punctations, internode length, 3-whorled leaves, leaf size and indumentum, axillary inflorescences, corolla length, color and indumentum, and 2-lipped corolla limb. According to the IUCN Red List Categories and Criteria, this new species has been provisionally assessed as Least Concern (LC).

    Keyword: Cuc Phuong National Park, Flora of Vietnam, Huong Pagoda, new taxon, Raphiocarpus asper

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