| Calycomelia campestris (Britton) Nieuwl. & Lunell | Synonym |  | WCSP | 
	
		| Calycomelia elliptica (Bosc) Kostel. | Synonym |  | WCSP | 
	
		| Calycomelia expansa (Willd.) Kostel. | Synonym |  | WCSP | 
	
		| Calycomelia lancea (Bosc) Kostel. | Synonym |  | WCSP | 
	
		| Calycomelia lanceolata (Borkh.) Lunell | Synonym |  | WCSP | 
	
		| Calycomelia ovata (Bosc) Kostel. | Synonym |  | WCSP | 
	
		| Calycomelia pennsylvanica (Marshall) Nieuwl. | Synonym |  | WCSP | 
	
		| Calycomelia pubescens (Lam.) Kostel. | Synonym |  | WCSP | 
	
		| Calycomelia richardii (Bosc) Kostel. | Synonym |  | WCSP | 
	
		| Fraxinus americana var. pennsylvanica (Marshall) Weston | Synonym |  | WCSP | 
	
		| Fraxinus americana subsp. pennsylvanica (Marshall) Wesm. | Synonym |  | WCSP | 
	
		| Fraxinus americana var. pennsylvanica (Marshall) Castigl. | Synonym |  | TRO | 
	
		| Fraxinus americana var. pubescens (Lam.) D.J.Browne | Synonym |  | WCSP | 
	
		| Fraxinus americana var. rubicunda (Bosc) Wesm. | Synonym |  | WCSP | 
	
		| Fraxinus americana var. subpubescens (Pers.) Wesm. | Synonym |  | WCSP | 
	
		| Fraxinus arbutifolia Dippel [Invalid] | Synonym |  | WCSP | 
	
		| Fraxinus aucubifolia G.Kirchn. | Synonym |  | WCSP | 
	
		| Fraxinus campestris Britton | Synonym |  | WCSP | 
	
		| Fraxinus cerasifolia Hoffmanns. | Synonym |  | WCSP | 
	
		| Fraxinus cinerea Bosc | Synonym |  | WCSP | 
	
		| Fraxinus concolor Muhl. [Invalid] | Synonym |  | WCSP | 
	
		| Fraxinus darlingtonii Britton | Synonym |  | WCSP | 
	
		| Fraxinus elliptica Bosc | Synonym |  | WCSP | 
	
		| Fraxinus expansa Willd. | Synonym |  | WCSP | 
	
		| Fraxinus fusca Bosc | Synonym |  | WCSP | 
	
		| Fraxinus glabra Lawson ex Beissner | Synonym |  | WCSP | 
	
		| Fraxinus juglandifolia var. aucubifolia H.Jaeger | Synonym |  | WCSP | 
	
		| Fraxinus juglandifolia var. subintegerrima Vahl | Synonym |  | WCSP | 
	
		| Fraxinus lancea Bosc | Synonym |  | WCSP | 
	
		| Fraxinus lanceolata Borkh. | Synonym |  | WCSP | 
	
		| Fraxinus lanceolata var. lindheimeri (Wenz.) Lingelsh. | Synonym |  | WCSP | 
	
		| Fraxinus lanceolata var. macrocarpa Lingelsh. | Synonym |  | WCSP | 
	
		| Fraxinus lanceolata var. viridis (C.K.Schneid.) Lingelsh. | Synonym |  | WCSP | 
	
		| Fraxinus lancifolia Raf. | Synonym |  | WCSP | 
	
		| Fraxinus longifolia Bosc | Synonym |  | WCSP | 
	
		| Fraxinus media Raf. | Synonym |  | WCSP | 
	
		| Fraxinus nigra var. pubescens (Lam.) Castigl. | Synonym |  | WCSP | 
	
		| Fraxinus oblongocarpa Buckley | Synonym |  | WCSP | 
	
		| Fraxinus ovalis Willd. [Spelling variant] | Synonym |  | WCSP | 
	
		| Fraxinus ovata Bosc | Synonym |  | WCSP | 
	
		| Fraxinus pennsylvanica var. aucubifolia (H.Jaeger) Rehder | Synonym |  | WCSP | 
	
		| Fraxinus pennsylvanica f. aucubifolia (H.Jaeger) Rehder | Synonym |  | WCSP | 
	
		| Fraxinus pennsylvanica var. austini-megaphylla Vict. & J.Rousseau | Synonym |  | WCSP | 
	
		| Fraxinus pennsylvanica var. austinii Fernald | Synonym |  | WCSP | 
	
		| Fraxinus pennsylvanica f. austinii (Fernald) | Synonym |  | TRO | 
	
		| Fraxinus pennsylvanica var. campestris (Britton) F.C.Gates | Synonym |  | WCSP | 
	
		| Fraxinus pennsylvanica f. colorata B.Boivin | Synonym |  | WCSP | 
	
		| Fraxinus pennsylvanica f. erythrocarpa Vict. & J.Rousseau | Synonym |  | WCSP | 
	
		| Fraxinus pennsylvanica var. lanceolata (Borkh.) Sarg. | Synonym |  | WCSP | 
	
		| Fraxinus pennsylvanica f. megaphylla Vict. & J.Rousseau | Synonym |  | WCSP | 
	
		| Fraxinus pennsylvanica var. ovata (Bosc) K.Koch | Synonym |  | WCSP | 
	
		| Fraxinus pennsylvanica var. pubescens (Lam.) Lingelsh. | Synonym |  | WCSP | 
	
		| Fraxinus pennsylvanica f. scotica B.Boivin | Synonym |  | WCSP | 
	
		| Fraxinus pennsylvanica var. subintegerrima (Vahl) Fernald | Synonym |  | WCSP | 
	
		| Fraxinus pennsylvanica subsp. subintegerrima (Vahl) A.E.Murray | Synonym |  | WCSP | 
	
		| Fraxinus pennsylvanica var. viridis C.K.Schneid. | Synonym |  | WCSP | 
	
		| Fraxinus platyphylla Hoffmanns. | Synonym |  | WCSP | 
	
		| Fraxinus pubescens Lam. | Synonym |  | WCSP | 
	
		| Fraxinus pubescens var. boscii Dippel | Synonym |  | WCSP | 
	
		| Fraxinus pubescens var. coriacea Dippel | Synonym |  | WCSP | 
	
		| Fraxinus pubescens var. lindheimeri Wenz. | Synonym |  | WCSP | 
	
		| Fraxinus pubescens var. longifolia Vahl | Synonym |  | WCSP | 
	
		| Fraxinus pubescens var. nana Dippel | Synonym |  | WCSP | 
	
		| Fraxinus pubescens var. ovata (Bosc) Dippel | Synonym |  | WCSP | 
	
		| Fraxinus pubescens var. subpubescens Pers. | Synonym |  | WCSP | 
	
		| Fraxinus richardii Bosc | Synonym |  | WCSP | 
	
		| Fraxinus rubicunda Bosc | Synonym |  | WCSP | 
	
		| Fraxinus rufa Bosc | Synonym |  | WCSP | 
	
		| Fraxinus smallii Britton | Synonym |  | WCSP | 
	
		| Fraxinus subvillosa Bosc ex Pers. | Synonym |  | WCSP | 
	
		| Fraxinus tomentosa Michx. | Synonym |  | WCSP | 
	
		| Fraxinus trialata Buckley | Synonym |  | WCSP | 
	
		| Fraxinus viridis F.Michx. [Illegitimate] | Synonym |  | WCSP | 
	
		| Fraxinus viridis var. pubescens (Lam.) Hitchc. | Synonym |  | WCSP | 
	
		| Fraxinus viridis var. trialata (Buckley) Schelle | Synonym |  | WCSP | 
	
		| Leptalix cinerea (Bosc) Raf. | Synonym |  | WCSP | 
	
		| Leptalix elliptica (Bosc) Raf. | Synonym |  | WCSP | 
	
		| Leptalix expansa (Willd.) Raf. | Synonym |  | WCSP | 
	
		| Leptalix fusca (Bosc) Raf. | Synonym |  | WCSP | 
	
		| Leptalix lancifolia Raf. | Synonym |  | WCSP | 
	
		| Leptalix longifolia (Bosc) Raf. | Synonym |  | WCSP | 
	
		| Leptalix media Raf. | Synonym |  | WCSP | 
	
		| Leptalix ovata (Bosc) Raf. | Synonym |  | WCSP | 
	
		| Leptalix pubescens (Lam.) Raf. | Synonym |  | WCSP | 
	
		| Leptalix richardii (Bosc) Raf. | Synonym |  | WCSP | 
	
		| Leptalix rubicunda (Bosc) Raf. | Synonym |  | WCSP | 
	
		| Leptalix rufa (Bosc) Raf. | Synonym |  | WCSP |