Rhynchoglossum obliquum Blume
Synonym(s):
Loxotis obliqua (Wallich) Bentham
Rhynchoglossum zeylanicum Hook.
Rhynchoglossum hologlossum Hayata
Wulfenia obliqua Wallich
Data source(s):
  • Burtt, B.L. 1962. Studies in the Gesneriaceae of the Old World: XXIII. Rhynchoglossum and Klugia. in Notes from the Royal Botanic Garden Edinburgh 24: 167-171, p.170
  • Wu Zhengyi & Peter H. Raven 1998. Flora of China: Vol.18. Scrophulariaceae through Gesneriaceae. Science Press (Beijing) & Missouri Botanical Garden (St. Louis), p.399
  • Pattharahirantricin, N. 2014. The genus Rhynchoglossum Blume (Gesneriaceae) in Thailand. in Thai Forestry Bulletin (Botany)(42): 24-34