Steinmann VW, Flores-Olvera H, Ochoterena H. Euphorbia villarrealii, a new species from harsh environments of Coahuila, Mexico. Phytotaxa [Internet]. 2026 Nov. 4 [cited 2026 Nov. 4];783(2):173-82. Available from: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.783.2.6