Tribulus glabrata Rydb. species synonym

Kallstroemia hirsutissima Vail species accepted

Tribulus terrestris Muhl. species heterotypic synonym

Kallstroemia maxima (L.) Torr. & A.Gray species synonym

Kallstroemia hirsuta L.O.Williams species heterotypic synonym

Tribulus brachystylis (Vail) A.Gray species synonym

Tribulus grandiflorus (Torr. ex A.Gray) Benth. & Hook.fil. species homotypic synonym

Tribulus caribaea Rydb. species synonym

Tribulus longipes Rydb. species synonym

Kallstroemia grandiflora var. arizonica Cockerell variety synonym

Tribulus maximus subsp. roseus Kuntze subspecies synonym

Tribulus maximus subsp. minor (Hook.fil. ex Hook.) Oliv. subspecies synonym

Kallstroemia pubescens (G.Don) Dandy species accepted

Kallstroemia caribaea Rydb. species synonym

Kallstroemia maxima (L.) Hook. & Arn. species accepted

Kallstroemia perennans B.L.Turner species accepted

Kallstroemia hirsutissima Vail ex Small species doubtful

Kallstroemia californica (S.Watson) Vail species accepted

Kallstroemia brachystylis Vail species synonym

Kallstroemia californica var. brachystylis (Vail) Kearney & Peebles variety synonym

Kallstroemia parviflora Norton species accepted

Kallstroemia intermedia Rydb. species synonym

Kallstroemia grandiflora Torr. ex A.Gray species accepted

Kallstroemia tucumanensis Descole, O'Donell & Lourteig species accepted

Kallstroemia tribulus Meisn. species synonym

Kallstroemia tribuloides (Mart.) Wight & Arn. species synonym

Kallstroemia standleyi D.M.Porter species accepted

Kallstroemia rosei Rydb. species accepted

Kallstroemia pennellii D.M.Porter species accepted

Kallstroemia peninsularis D.M.Porter species accepted

Kallstroemia minor Hook.fil. species synonym

Kallstroemia longipes Rydb. species synonym

Kallstroemia laetevirens Thornber ex Wooton & Standl. species accepted

Kallstroemia incana Rydb. species accepted

Kallstroemia hintonii D.M.Porter species accepted

Kallstroemia grandiflora var. detonsa A.Gray variety synonym

Kallstroemia glabrata Rydb. species synonym

Kallstroemia curta Rydb. species accepted

Kallstroemia canescens Rydb. species synonym

Kallstroemia boliviana Standl. species accepted

Kallstroemia adscendens (Andersson) B.L.Rob. species accepted

Tribulus maximus L. species synonym

Kallstroemia tribuloides (Mart.) Steud. species synonym

Tribulus adscendens Andersson species synonym

Ehrenbergia tribuloides Mart. species synonym

Tribulus trijugatus Nutt. species synonym

Tribulus grandiflorus (Torr. ex A.Gray) Benth. & Hook.fil. ex S.Watson species synonym

Tribulus fisheri Kellogg species synonym

Tribulus dimidiatus Raf. species synonym

Tribulus decolor Macfad. species synonym

Tribulus tuberculatus Sessé & Moc. species synonym

Tribulus pubescens G.Don species synonym

Tribulus trijugus Steud. species synonym

Tribulus californicus S.Watson species synonym

Tribulus brasiliensis Spreng. species synonym

Tribulus brachystylis (Vail) B.L.Rob. species synonym

Tribulus maximus var. adscendens (Andersson) Andersson variety synonym

Kallstroemia laetevirens Thornber species synonym

Kallstroemia caribaea Urb. species homotypic synonym

Kallstroemia mexicana Hook. & Arn. species accepted

Kallstroemia californica var. californica variety synonym

Kallstroemia hageri Rebman species accepted

Kallstroemia grandiflora Torr. species homotypic synonym

Kallstroemia porteri B.L.Turner species accepted