| Name | Height | Leaf | Fruit | Region |
| White Ash Fraximus americana |
60′ – 70′, can be 100′ | 7 oval leaflets, gradually tapered to each end, 8″ – 15″ | winged, seed cylindrical | Deciduous, Great Lakes – St. Lawrence, Acadian |
| Red Ash Fraximus pensylvanica |
30′ – 40′, can be 85′ | 7 oval leaflets, gradually tapered to each end, 10″ – 12″ | winged, seed cylindrical | southern Boreal in Saskatchewan and Manitoba, Deciduous, Great lakes – St. Lawrence, Acadia (except Nova Scotia) |
| Blue Ash Fraximus quandrangulata |
up to 70′ | 11 oval leaflets, tapered to long tip, 8″ – 12″ | wing broad, twisted | part of Deciduous |
| Black Ash Fraximus nigra |
40′ – 60′, can be 90′ | 7-11 oval leaflets, tapered to sharp tip, 10″ – 16″ | broad twisted wing, flat seed | southeastern Boreal, Deciduous, Great Lakes – St. Lawrence, Acadian |
