Monographs Details: Arachnothryx reflexa var. trichotoma (Standl.) Steyerm.
Authority: Maguire, Bassett. 1967. The botany of the Guayana Highland--Part VII. Mem. New York Bot. Gard. 17: 1-439.

Rondeletia trichotoma Standley, Field Mus. Publ. Bot. 7: 204. 1931.

Type. Andes at the base of Mt. Chimborazo, Ecuador, alt 900 m, July 1860, R. Spruce 6187.