| General Description | An aggressive, fast growing tree often confused in our area with Juglans nigra. |
| ID Characteristic | The pinnately compound leaves with a small gland at the base of each of the leaflets. Bitterly aromatic foliage when crushed. |
| Shape | Large somewhat rounded crown. |
| Landscape | Should not be used in the landscape. |
| Propagation | Self propagating without our help. Root cuttings collected in the autumn and cut into 50 cm lengths and inserted vertically into pots or flats barley covering the top. Water and place in a cold frame until growth appears and then pot individually. |
| Cultivation | This tree will grow almost anywhere, from the smallest crack in the pavement to the cultivated landscape. |
| Pests | Generally pest and disease free. |
| Notable Specimens | Abandoned lots in most cities from Toronto south. |
| Habitat | Naturalized throughout Southern Ontario and the United States. |
| Bark/Stem Description | Beige, on older bark, young twigs often downy and similar in texture to Rhus typhina. |
| Flower/Leaf Bud Description | Buds are small, held above the leaf scar and somewhat downy. |
| Leaf Description | The pinnately compound leaves with a small gland at the base of each of the leaflets. Bitterly aromatic foliage when crushed. Leaves are large, up to 60 cm long. New leaves are a bronze brown upon emergence. |
| Flower Description | Large cream to green blooms in June or July. Dioecious, males having the smell of the crushed leaves while female flowers have no scent. |
| Fruit Description | A light beige samara, 1.5-2 cm long. |
| Colour Description | A weak pale yellow in the autumn. |
| Texture Description | A coarse textured tree. |
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