Native to (or naturalized in) Oregon:
- Deciduous tree, 40-60 ft, (12-18 m). Leaves, alternate, simple, distinct 3-lobed (middle triangular), margin finely serrate, glabrous above and usually downy beneath, purple-hue in spring then lustrous dark green, may show yellow in fall. Stem emits a sweet-spicy odor when bruised. Yellow-green male and female flowers are on the same plant but at separate locations. Female flowers form dense spherical clusters that develop into spiny fruiting ball-like clusters, 4 cm wide, which mature to dark brown and usually remain on the tree through the winter.
- Sun. Prefers deep, fertile, well-drained soil.
- Hardy to USDA Zone 6 Native to Taiwan and southern and central China.