| Shape | A weak, open shrub. |
| Cultivation | Tolerates infertile soil, being very lime-tolerant, as well as tolerating very wet sites, including standing water up to 30 cm deep. |
| Notable Specimens | Whistling Gardens, Wilsonville, Ontario, Canada. |
| Habitat | Horticultural origin. |
| Bark/Stem Description | Bark is brown-black, with thin branches. |
| Leaf Description | Leaves are 4-10 cm, persisting well into autumn, dark lustrous green on top, paler underneath. The 'Imperialis' cultivar has especially deeply cut narrow lobes. |
| Flower Description | Male catkins grow to 5-10 cm, appearing in groups of 3-5, while the female catkins grow to 1-2 cm, ovoid, in groups of 3-8. |
