| Olax acuminata Wall. ex Benth. | Accepted |  | TRO |  | 
	
		| Olax alliacea (De Wild.) Boutique | Synonym |  | TRO |  | 
	
		| Olax anceps (Oliv.) Roberty | Synonym |  | WCSP (in review) |  | 
	
		| Olax andronensis Baker | Synonym |  | TRO |  | 
	
		| Olax angulata A.S.George | Unresolved |  | WCSP (in review) |  | 
	
		| Olax angustifolia Compère | Unresolved |  | WCSP (in review) |  | 
	
		| Olax antsiranensis Z.S.Rogers, Malécot & Sikes | Unresolved |  | WCSP (in review) |  | 
	
		| Olax aphylla R.Br. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax aschersoniana Büttner | Accepted |  | WCSP (in review) |  | 
	
		| Olax aurantia A.S.George | Unresolved |  | WCSP (in review) |  | 
	
		| Olax austrosinensis Y.R. Ling | Accepted |  | TRO |  | 
	
		| Olax autraniana Pierre | Unresolved |  | WCSP (in review) |  | 
	
		| Olax bador Buch.-Ham. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax baticulin Blanco | Unresolved |  | WCSP (in review) |  | 
	
		| Olax benthamiana Miq. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax bernieriana Baill. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax boiviniana Baill. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax breonii Baill. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax capuronii Z.S.Rogers, Malécot & Sikes | Unresolved |  | WCSP (in review) |  | 
	
		| Olax chariensis A.Chev. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax denticulata Engl. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax dissitiflora Oliv. | Accepted |  | WCSP (in review) |  | 
	
		| Olax durandii Engl. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax emirnensis Baker | Accepted |  | TRO |  | 
	
		| Olax evrardii Gagnep. | Synonym |  | TRO |  | 
	
		| Olax gambecola Baill. | Accepted |  | WCSP (in review) |  | 
	
		| Olax gardneriana Benth. | Synonym |  | TRO |  | 
	
		| Olax gilletii De Wild. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax glabriflora Danguy | Synonym |  | TRO |  | 
	
		| Olax gossweileri Exell & Mendonça | Accepted |  | WCSP (in review) |  | 
	
		| Olax heyneana Wall. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax humbertii Cavaco & Keraudren | Synonym |  | TRO |  | 
	
		| Olax humilis Royle ex Decne. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax hypoleuca Baill. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax imbricata Roxb. | Accepted |  | TRO |  | 
	
		| Olax insculpta Hutch. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax lanceolata Cavaco & Keraudren | Unresolved |  | WCSP (in review) |  | 
	
		| Olax latifolia Engl. | Accepted |  | WCSP (in review) |  | 
	
		| Olax laurentii Engl. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax laxiflora Merr. ex H.L.Li | Unresolved |  | WCSP (in review) |  | 
	
		| Olax laxiflora Ridl. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax longiflora Engl. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax longifolia Wall. [Invalid] | Synonym |  | WCSP (in review) |  | 
	
		| Olax loranthiformis Griff. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax lucida B.Heyne | Unresolved |  | WCSP (in review) |  | 
	
		| Olax macrocalyx Engl. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax macrophylla Benth. | Synonym |  | WCSP (in review) |  | 
	
		| Olax madagascariensis (DC.) Valeton | Accepted |  | TRO |  | 
	
		| Olax major Stapf | Unresolved |  | WCSP (in review) |  | 
	
		| Olax mannii Oliv. | Accepted |  | WCSP (in review) |  | 
	
		| Olax mayottensis Z.S.Rogers, Malécot & Sikes | Unresolved |  | WCSP (in review) |  | 
	
		| Olax merguensis Planch. ex Mast. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax minquartioides Baill. ex Pellegr. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax multiflora Ridl. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax multiflora Rich. ex Baill. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax nana Wall. ex Benth. | Accepted |  | TRO |  | 
	
		| Olax obcordata A.S.George | Unresolved |  | WCSP (in review) |  | 
	
		| Olax obtusa Blume | Unresolved |  | WCSP (in review) |  | 
	
		| Olax obtusifolia De Wild. | Accepted |  | WCSP (in review) |  | 
	
		| Olax pauciflora Benth. | Synonym |  | TRO |  | 
	
		| Olax pendula L.S.Sm. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax pentandra Sleumer | Accepted |  | TRO |  | 
	
		| Olax pervilleana Baill. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax phoenicarpa Roxb. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax phyllanthi R.Br. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax poggei Engl. | Synonym |  | TRO |  | 
	
		| Olax pseudoleia Willd. ex Steud. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax pseudoleioides Willd. ex Steud. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax psittacorum (Lam.) Vahl | Accepted |  | TRO |  | 
	
		| Olax pynaertii De Wild. | Accepted |  | TRO |  | 
	
		| Olax pyrnmidata A.Chev. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax quercina Baill. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax retusa F.Muell. ex Benth. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax rosea Ridl. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax scalariformis A.S.George | Unresolved |  | WCSP (in review) |  | 
	
		| Olax scandens Roxb. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax schlechteri Engl. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax schomburgkii Klotzsch [Invalid] | Synonym |  | WCSP (in review) |  | 
	
		| Olax seminifera Valeton | Unresolved |  | WCSP (in review) |  | 
	
		| Olax spartea A.S.George | Unresolved |  | WCSP (in review) |  | 
	
		| Olax sphaerocarpa Griff. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax staudtii Engl. | Accepted |  | TRO |  | 
	
		| Olax stricta R.Br. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax stuhlmannii Engl. | Synonym |  | TRO |  | 
	
		| Olax subscorpioides Oliv. | Accepted |  | WCSP (in review) |  | 
	
		| Olax sumatrana Miq. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax tessmannii Engl. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax thouarsiana Baill. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax thouarsii (DC.) Valeton | Accepted |  | TRO |  | 
	
		| Olax triplinervia Oliv. | Accepted |  | WCSP (in review) |  | 
	
		| Olax tsaratananensis Cavaco & Keraudren | Synonym |  | TRO |  | 
	
		| Olax ubanghensis A.Chev. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax uliginosa Klotzsch | Unresolved |  | WCSP (in review) |  | 
	
		| Olax vellozoana Benth. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax verruculosa Engl. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax viridis Oliv. | Synonym |  | WCSP (in review) |  | 
	
		| Olax wightiana Wall. ex Wight & Arn. | Synonym |  | TRO |  | 
	
		| Olax wildemanii Engl. | Accepted |  | WCSP (in review) |  | 
	
		| Olax zenkeri Engl. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax zeylanica L. | Unresolved |  | WCSP (in review) |  | 
	
		| Olax zeylanica Wall. | Unresolved |  | WCSP (in review) |  |