Zygophyllum

thumb|Zygophyllum fabago leaflets Zygophyllum is the type genus of the flowering plant family Zygophyllaceae. The genus name is derived from the Ancient Greek ζυγόν (zygón), meaning "double", and φύλλον (phyllon), meaning "leaf". It refers to the leaves, each of which have two leaflets. thumb|Zygophyllum atriplicoides in [[Behbahan County, Iran]] The genus is distributed in arid and semi-arid regions of Africa, the Mediterranean Basin, central Asia, Australia, and North and South America. Molecular phylogenetic analysis suggested that as previously circumscribed, Zygophyllum was not monophyletic, and the genus was split among a number of other genera, including Augea, Fagonia, Roepera and Tetraena. , Plants of the World Online accepted only Roepera of these genera, regarding Augea, Fagonia and Tetraena as synonyms of Zygophyllum.

==Species== , Plants of the World Online accepted 117 species (including those other sources place in Augea, Fagonia and Tetraena): Zygophyllum acerosum (Boiss.) Christenh. & Byng Zygophyllum aegyptium Hosny Zygophyllum album L.f. Zygophyllum applanatum Van Zyl Zygophyllum arabicum (L.) Christenh. & Byng Zygophyllum atriplicoides Fisch. & C.A.Mey. Zygophyllum augea Christenh. & Byng Zygophyllum balchaschense Boriss. Zygophyllum betpakdalense Golosk. & Semiotr. Zygophyllum borissovae Beier & Thulin Zygophyllum brachypterum Kar. & Kir. Zygophyllum bruguieri (DC.) Christenh. & Byng Zygophyllum bucharicum B.Fedtsch. Zygophyllum californicum (Benth.) Christenh. & Byng Zygophyllum charoides (Chiov.) Christenh. & Byng Zygophyllum chilense (Hook. & Arn.) Christenh. & Byng Zygophyllum chrysopteron Retief Zygophyllum clavatum Schltr. & Diels Zygophyllum coccineum L. Zygophyllum cornutum Coss. Zygophyllum creticum (L.) Christenh. & Byng Zygophyllum cuspidatum Boriss. Zygophyllum cylindrifolium Schinz Zygophyllum darvasicum Boriss. Zygophyllum decumbens Delile Zygophyllum densispinum (Beier & Thulin) Christenh. & Byng Zygophyllum densum (I.M.Johnst.) Christenh. & Byng Zygophyllum dregeanum Sond. Zygophyllum dumosum Boiss. Zygophyllum eichwaldii C.A.Mey. Zygophyllum fabago L. Zygophyllum fabagoides Popov Zygophyllum fontanesii Webb & Berthel. Zygophyllum furcatum C.A.Mey. Zygophyllum gaetulum Emb. & Maire Zygophyllum geslinii Coss. Zygophyllum giessii Merxm. & A.Schreib. Zygophyllum glutinosum (Delile) Christenh. & Byng Zygophyllum gobicum Maxim. Zygophyllum gontscharovii Boriss. Zygophyllum gypsophilum (Beier & Thulin) Christenh. & Byng Zygophyllum hadramauticum (Beier & Thulin) Christenh. & Byng Zygophyllum hamiense Schweinf. Zygophyllum harpago (Emb. & Maire) Christenh. & Byng Zygophyllum heterocladum Rech.f. & Patzak Zygophyllum iliense Popov Zygophyllum indicum (Burm.f.) Christenh. & Byng Zygophyllum jaxarticum Popov Zygophyllum kansuense Y.X.Liou Zygophyllum karatavicum Boriss. Zygophyllum kaschgaricum Boriss. Zygophyllum kegense Boriss. Zygophyllum kopalense Boriss. Zygophyllum laeve (Standl.) Christenh. & Byng Zygophyllum lahovarii (Volkens & Schweinf.) Christenh. & Byng Zygophyllum latistipulatum (Beier & Thulin) Christenh. & Byng Zygophyllum lehmannianum Bunge Zygophyllum loczyi Kanitz Zygophyllum longicapsulare Schinz Zygophyllum longistipulatum Schinz Zygophyllum luntii (Baker) Christenh. & Byng Zygophyllum macropodum Boriss. Zygophyllum madagascariense (Baill.) Stauffer Zygophyllum madecassum H.Perrier Zygophyllum mahranum (Beier) Christenh. & Byng Zygophyllum mandavillei Hadidi Zygophyllum mayanum (Schltdl.) Christenh. & Byng Zygophyllum melongena Bunge Zygophyllum microcarpum Licht. ex Cham. Zygophyllum migiurtinorum Chiov. Zygophyllum miniatum Cham. Zygophyllum minutistipulum (Engl.) Christenh. & Byng Zygophyllum molle (Delile) Christenh. & Byng Zygophyllum mongolicum (Maxim.) Christenh. & Byng Zygophyllum mucronatum Maxim. Zygophyllum neglectum Grubov Zygophyllum obliquum Popov Zygophyllum olivieri (DC.) Christenh. & Byng Zygophyllum orientale (C.Presl) Christenh. & Byng Zygophyllum ovigerum Fisch. & C.A.Mey. ex Bunge Zygophyllum oxianum Boriss. Zygophyllum oxycarpum Popov Zygophyllum pachyacanthum (Rydb.) Christenh. & Byng Zygophyllum palmeri (Vasey & Rose) Christenh. & Byng Zygophyllum pamiricum Grubov Zygophyllum paulayanum (J.Wagner & Vierh.) Christenh. & Byng Zygophyllum pinnatum Cham. Zygophyllum potaninii Maxim. Zygophyllum prismaticum Chiov. Zygophyllum prismatocarpum Sond. Zygophyllum procumbens Adamson Zygophyllum propinquum Decne. Zygophyllum pterocarpum Bunge Zygophyllum pterocaule Van Zyl Zygophyllum qatarense Hadidi Zygophyllum retrofractum Thunb. Zygophyllum rigidum Schinz Zygophyllum rosowii Bunge Zygophyllum scabrum (Forssk.) Christenh. & Byng Zygophyllum scoparium (Brandegee) Christenh. & Byng Zygophyllum simplex L. Zygophyllum sinkiangense Y.X.Liou Zygophyllum smithii Hadidi Zygophyllum somalense Hadidi Zygophyllum spinosissimum (Blatt. & Hallb.) Christenh. & Byng Zygophyllum stapffii Schinz Zygophyllum steropterum Schrenk Zygophyllum subinerme (Boiss.) Christenh. & Byng Zygophyllum subtrijugum C.A.Mey. Zygophyllum sulcatum Huysst. Zygophyllum taldykurganicum Boriss. Zygophyllum tenue R.Glover Zygophyllum trialatum Blatt. & Hallb. Zygophyllum turcomanicum Fisch. ex Boiss. Zygophyllum villosum (D.M.Porter) Christenh. & Byng Zygophyllum xanthoxylum (Bunge) Maxim. Zygophyllum zilloides (Humbert) Christenh. & Byng