Answers are grounded in this paper and cite their sources.
AbstractThree shrubby, succulent, spiny Euphorbia (Euphorbiaceae) species from western Saudi Arabia are described and illustrated as new: Euphorbia madinahensis Fayed & D.Al-Zahrani, Euphorbia saudiarabica Fayed & D.Al-Zahrani and Euphorbia taifensis Fayed & D.Al-Zahrani. Diagnostic characters, descriptions and taxonomic comments on each are given, and they are compared with closely related species. The geographical distribution of the three new species is shown.
No takes yet. Share an insight, caveat, or question.
Fayed et al. (2007) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: