| Oreocarya abortiva Greene | Synonym |  | TRO | 
	
		| Oreocarya affinis Greene | Unresolved |  | WCSP (in review) | 
	
		| Oreocarya affinis var. macounii (Eastw.) Brand | Synonym |  | TRO | 
	
		| Oreocarya affinis var. perennis A. Nelson | Synonym |  | TRO | 
	
		| Oreocarya alata (M.E. Jones) A. Nelson | Accepted |  | TRO | 
	
		| Oreocarya aperta Eastw. | Synonym |  | TRO | 
	
		| Oreocarya argentea Rydb. | Unresolved |  | WCSP (in review) | 
	
		| Oreocarya bakeri Greene | Synonym |  | TRO | 
	
		| Oreocarya breviflora Osterh. | Synonym |  | TRO | 
	
		| Oreocarya caespitosa A. Nelson | Synonym |  | TRO | 
	
		| Oreocarya cana A. Nelson | Synonym |  | TRO | 
	
		| Oreocarya capitata Eastw. | Synonym |  | TRO | 
	
		| Oreocarya celosioides Eastw. | Synonym |  | WCSP (in review) | 
	
		| Oreocarya ciliohirsuta A.Nelson & J.F.Macbr. | Unresolved |  | WCSP (in review) | 
	
		| Oreocarya cinerea Greene | Synonym |  | TRO | 
	
		| Oreocarya clemensae (Payson) Brand | Unresolved |  | WCSP (in review) | 
	
		| Oreocarya commixta J.F. Macbr. | Synonym |  | TRO | 
	
		| Oreocarya confertiflora Greene | Synonym |  | TRO | 
	
		| Oreocarya crymophila (I.M. Johnst.) Jeps. & Hoover | Synonym |  | TRO | 
	
		| Oreocarya depressa (M.E. Jones) J.F. Macbr. | Accepted |  | TRO | 
	
		| Oreocarya disticha Eastw. | Synonym |  | TRO | 
	
		| Oreocarya dolosa J.F.Macbr. | Unresolved |  | WCSP (in review) | 
	
		| Oreocarya dura A.Nelson & J.F.Macbr. | Unresolved |  | WCSP (in review) | 
	
		| Oreocarya eastwoodae A.Nelson & P.B.Kenn. | Unresolved |  | WCSP (in review) | 
	
		| Oreocarya echinoides (M.E. Jones) J.F. Macbr. | Synonym |  | TRO | 
	
		| Oreocarya elata Eastw. | Synonym |  | TRO | 
	
		| Oreocarya eulophus Rydb. | Unresolved |  | WCSP (in review) | 
	
		| Oreocarya flava A. Nelson | Synonym |  | TRO | 
	
		| Oreocarya flavoculata A. Nelson | Synonym |  | TRO | 
	
		| Oreocarya fulvocanescens (A. Gray) Greene | Synonym |  | TRO | 
	
		| Oreocarya glomerata (Pursh) Greene | Accepted |  | TRO | 
	
		| Oreocarya gypsophila Payson | Unresolved |  | WCSP (in review) | 
	
		| Oreocarya hispida A.Nelson & P.B.Kenn. | Unresolved |  | WCSP (in review) | 
	
		| Oreocarya hispidissimum (Torr.) Rydb. | Accepted |  | TRO | 
	
		| Oreocarya hoffmannii (I.M. Johnst.) Abrams | Synonym |  | TRO | 
	
		| Oreocarya holoptera (A. Gray) Greene | Synonym |  | TRO | 
	
		| Oreocarya horridula Greene | Unresolved |  | WCSP (in review) | 
	
		| Oreocarya humilis Greene | Synonym |  | TRO | 
	
		| Oreocarya humilis subsp. nana (Eastw.) W.A. Weber | Synonym |  | TRO | 
	
		| Oreocarya insolita J.F. Macbr. | Synonym |  | TRO | 
	
		| Oreocarya interrupta Greene | Synonym |  | TRO | 
	
		| Oreocarya jonesiana Payson | Synonym |  | TRO | 
	
		| Oreocarya lemmonii Eastw. | Unresolved |  | WCSP (in review) | 
	
		| Oreocarya leucophaea (Douglas ex Lehm.) Greene | Synonym |  | TRO | 
	
		| Oreocarya leucophaea var. confertiflora (Greene) Parish | Synonym |  | TRO | 
	
		| Oreocarya longiflora A. Nelson | Synonym |  | TRO | 
	
		| Oreocarya lutescens Greene | Unresolved |  | WCSP (in review) | 
	
		| Oreocarya macbridei Brand | Unresolved |  | WCSP (in review) | 
	
		| Oreocarya macounii Eastw. | Synonym |  | TRO | 
	
		| Oreocarya mensana (M.E. Jones) Payson | Synonym |  | TRO | 
	
		| Oreocarya monosperma Osterh. | Unresolved |  | WCSP (in review) | 
	
		| Oreocarya multicaulis (Torr.) Greene | Synonym |  | TRO | 
	
		| Oreocarya multicaulis var. cinerea (Greene) J.F. Macbr. | Synonym |  | TRO | 
	
		| Oreocarya multicaulis var. laxa J.F. Macbr. | Synonym |  | TRO | 
	
		| Oreocarya nana Eastw. | Synonym |  | TRO | 
	
		| Oreocarya nitida Greene | Synonym |  | TRO | 
	
		| Oreocarya nubigena Greene | Synonym |  | TRO | 
	
		| Oreocarya oblata (M.E. Jones) J.F. Macbr. | Synonym |  | TRO | 
	
		| Oreocarya osterhoutii Payson | Synonym |  | TRO | 
	
		| Oreocarya palmeri (A. Gray) Greene | Synonym |  | TRO | 
	
		| Oreocarya paradoxa A. Nelson | Synonym |  | TRO | 
	
		| Oreocarya paysonii J.F. Macbr. | Synonym |  | TRO | 
	
		| Oreocarya perennis (A. Nelson) Rydb. | Synonym |  | TRO | 
	
		| Oreocarya procera Osterh. | Unresolved |  | WCSP (in review) | 
	
		| Oreocarya propria A. Nelson & J.F. Macbr. | Synonym |  | TRO | 
	
		| Oreocarya pulvinata A.Nelson | Unresolved |  | WCSP (in review) | 
	
		| Oreocarya pustulosa Rydb. | Synonym |  | TRO | 
	
		| Oreocarya rollinsii (I.M. Johnst.) W.A. Weber | Synonym |  | TRO | 
	
		| Oreocarya rugulosa Payson | Synonym |  | TRO | 
	
		| Oreocarya salmonensis A. Nelson & J.F. Macbr. | Synonym |  | TRO | 
	
		| Oreocarya sericea (A. Gray) Greene | Synonym |  | TRO | 
	
		| Oreocarya setosissima (A. Gray) Greene | Synonym |  | TRO | 
	
		| Oreocarya shantzii Tidestr. | Synonym |  | TRO | 
	
		| Oreocarya sheldonii Brand | Synonym |  | TRO | 
	
		| Oreocarya shockleyi Eastw. | Unresolved |  | WCSP (in review) | 
	
		| Oreocarya spicata Rydb. | Synonym |  | TRO | 
	
		| Oreocarya spiculifera Piper | Synonym |  | TRO | 
	
		| Oreocarya stricta Osterh. | Synonym |  | TRO | 
	
		| Oreocarya subretusa (I.M. Johnst.) Abrams | Synonym |  | TRO | 
	
		| Oreocarya suffruticosa (Torr.) Greene | Accepted |  | TRO | 
	
		| Oreocarya suffruticosa var. abortiva (Greene) J.F. Macbr. | Synonym |  | TRO | 
	
		| Oreocarya suffruticosa var. cinerea (Greene) Payson | Synonym |  | TRO | 
	
		| Oreocarya suffruticosa var. multicaulis (Torr.) Payson | Synonym |  | TRO | 
	
		| Oreocarya tenuis Eastw. | Synonym |  | TRO | 
	
		| Oreocarya thompsonii (I.M. Johnst.) Abrams | Synonym |  | TRO | 
	
		| Oreocarya thyrsiflora Greene | Synonym |  | TRO | 
	
		| Oreocarya torva A.Nelson | Unresolved |  | WCSP (in review) | 
	
		| Oreocarya tumulosa Payson | Synonym |  | TRO | 
	
		| Oreocarya urticacea Wooton & Standl. | Unresolved |  | WCSP (in review) | 
	
		| Oreocarya virgata (Porter) Greene | Synonym |  | TRO | 
	
		| Oreocarya virgata f. spicata (Rydb.) J.F. Macbr. | Unresolved |  | TRO | 
	
		| Oreocarya virginensis (M.E. Jones) J.F. Macbr. | Synonym |  | TRO | 
	
		| Oreocarya weberi (I.M. Johnst.) W.A. Weber | Synonym |  | TRO | 
	
		| Oreocarya wetherillii Eastw. | Synonym |  | TRO | 
	
		| Oreocarya williamsii A.Nelson | Unresolved |  | WCSP (in review) |