Trigonachras cuspidata Radlk. in Philipp. J. Sc., Bot. 6: 182. 1911
- Unknown type category: FB (Hagger) 1411
- =Trigonachras rigida Radlk. in Philipp. J. Sc., Bot. 8: 467. 1914
- =Trigonachras falcatocuspidata Radlk. in Philipp. J. Sc. 20: 661. 1922
- Type: BS (Ramos) 14920 (BM)
- Holotype: BS (Ramos) 14920 (M)
