| Scientific Name: | Fraxinus nigra |
| Common Name: | swamp ash, Fallgold black ash |
| Family Name: | Oleaceae |
| Origin: | Canada - eastern, Garden origin, U.S. - northeast |
| Hardiness Zone: | Zone 2: (-46 to -40 °C) |
| Plant Type: | Tree - deciduous |
| Mature Size: | 10 - 15m x 7 - 10m (height x width) |
| Habit: | Dense, Spreading, Upright |
| Form: | Oval - vertical |
| Texture: | Medium |
| Landscape Uses: | Fall interest, Screening, Shade tree, Specimen plant, Street (boulevard tree), Tall background, Wetland - bogs, Woodland margin |
| Exposure: | Full sun, Part sun/part shade |
| Soil or Media: | Bog |
| Leaves: | Compound, Opposite, Soft flexible, Pinnate venation, Glabrous, Odd-pinnate, Elliptic, Lanceolate, Serrulate |
| Flowers: | Flowers clustered, Purple, May |
| Fruit: | Aborted (hybrids) or absent, Brown |
| Key ID Features: | |
| Leaves opposite, pinnately compound, 20-45cm long; leaflets 7-11 per leaf, lanceolate to elliptical, 7-12cm long x 2-5cm wide, sessile except for terminal leaflet, apex acuminate, margin finely serrate, golden yellow fall colour; samaras 2.5-4.5cm long x 6-8mm wide with the seed about half this length. Winter ID: buds opposite, ovoid, 5mm, rounded/ flattened on stem side, nearly black; leaf scar half-round to nearly oval with an upper notch for leaf bud; vascular bundle scars are very numerous forming a U-shaped line. | |