Arachnothryx heteranthera (Brandegee) Borhidi in Acta Bot. Hung. 28: 69. 1982 sec. Lorence 2011
- =Rondeletia heteranthera Brandegee in Univ. Calif. Publ. Bot. 4: 387. 1913 syn. sec. The Plant List 2013
- =Rondeletia falciformis Lundell in Wrightia 5(8): 324–325. 1976 syn. sec. Borhidi 2006
- =Arachnothryx falciformis (Lundell) Borhidi in Acta Bot. Hung. 35: 310. 1989 syn. sec. Borhidi 2006