| Scientific Name: | Ostrya virginiana |
| Common Name: | American hophornbeam, ironwood |
| Family Name: | Betulaceae |
| Origin: | U.S. - northeast |
| Hardiness Zone: | Zone 3: (-40 to -34 °C) |
| Plant Type: | Tree - deciduous |
| Mature Size: | 15 - 22m x 7 - 10m (height x width) |
| Habit: | Upright |
| Form: | Oval - horizontal, Round |
| Texture: | Medium - coarse |
| Landscape Uses: | Accent plant, Native planting, Specimen plant, Street (boulevard tree), Summer interest, Winter interest |
| Exposure: | Full sun, Part sun/part shade |
| Soil or Media: | Well-drained |
| Leaves: | Simple, Alternate, Soft flexible, Heavily veined, Pinnate venation, Pubescent, Elliptic, Ovate, Double serrate |
| Flowers: | Catkin (ament), Green-yellow, Brown, Apr-Dec |
| Fruit: | Nut, Green-yellow, Brown, Oct, (Persistent) |
| Key ID Features: | |
| Leaves alternate, ovate to elliptical, most 10-15cm long x 5-7cm wide, margin serrate; female catkins papery and cone-like; fruit with 10-20 nutlets per sac-like bract (involucre). Winter ID: twigs zigzag; strongly divergent winter buds, terminal absent, scales striate. | |