A new species of Thunbergia, T. kasajuana Bh.Adhikari & J.R.I.Wood is described from central Nepal. It is most closely related to T. grandiflora Roxb., because of its reduced annular calyx and similar inflorescence structure but differs in the much smaller corolla, herbaceous habit and different ecology. A description, photographs and a key to the species of Thunbergia native to Nepal are provided.

中文翻译：

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刺柏（Thunbergia kasajuana），一种来自尼泊尔的棘皮科植物

一新种牵，T. kasajuana Bh.Adhikari＆JRIWood从尼泊尔中部说明。由于它的环状花萼减少和相似的花序结构，所以它与T. grandiflora Roxb。关系最密切，但花冠较小，草本习性和生态学不同。说明，照片和一键的种类牵提供原产于尼泊尔。