World Checklist of Selected Plant Families: Royal Botanic Gardens, Kew

Euphorbia montana var. robusta Engelm. in W.H.Emory, Rep. U.S. Mex. Bound. 2(1): 192 (1858).

This name is a synonym.

Homotypic Names:
Accepted Name:	Euphorbia brachycera Engelm. in W.H.Emory, Rep. U.S. Mex. Bound. 2(1): 192 (1858).
Family:	Euphorbiaceae
Euphorbia robusta (Engelm.) Small in N.L.Britton & A.Brown, Ill. Fl. N. U.S. 2: 381 (1897). Tithymalus robustus (Engelm.) Small in N.L.Britton & A.Brown, Ill. Fl. N. U.S., ed. 2, 2: 475 (1913). Galarhoeus robustus (Engelm.) Rydb., Brittonia 1: 93 (1931). Euphorbia brachycera var. robusta (Engelm.) Dorn, Vasc. Pl. Wyoming: 296 (1988).
Original Compiler:	R.Govaerts