Euphorbia chaetocalyx var. triligulata (L.C. Wheeler) M.C. Johnst., Wrightia 5(5). 1975 sec. Martínez-Gordillo & al. 2006
- =Euphorbia fendleri var. triligulata L.C. Wheeler, Bull. Torrey Bot. Club 63. 1936 syn. sec. Martínez-Gordillo & al. 2006
- =Chamaesyce fendleri var. triligulata (L.C. Wheeler) Shinners, Field & Lab. 17. 1949 syn. sec. Martínez-Gordillo & al. 2006
- =Chamaesyce chaetocalyx var. triligulata (L.C. Wheeler) Mayfield, Phytologia 75(2). 1993 syn. sec. Martínez-Gordillo & al. 2006