A synopsis of the genus Atriplex L. (Chenopodiaceae) in Saudi Arabia

The genus Atriplex L. is revised from Saudi Arabia. In all 10 species are reported, out of which seven are native (Atriplex coriacea, A. dimorphostegia, A. farinosa, A glauca, A. halimus, A. leucoclada and A. tatarica) , and three are introduced and cultivated/naturalised (A. canescens, A. semibaccata and A. suberecta) . The study has introduced the presences of following new taxa: Atriplex dimorphostegia f. collenettea Al‐Turki, Omer & A. Ghafoor f. nova, and Atriplex leucoclada var. mandavillea Al‐Turki, Omer & A.Ghafoor var. nova. Status and history of genera segregated from Atriplex has been discussed. A key for identification of taxa recognized and their descriptions are given; notes on nomenclature, variation pattern, ecology, distribution maps, local names and uses are provided. A list of introduced and cultivated species is appended.