Native to (or naturalized in) Oregon:
- Deciduous tree, generally 30-50(80) ft [9-15(25) m] tall, crown ovoid-conic, stems angled, soon glabrous, sticky red-grown. Bark glossy brown. Leaves alternate, simple, broadly oval to rounded, 5-12 cm long, base cordate to wedge-shaped, margin unevenly sharply toothed, glossy green above, paler below, petioles 2-3 cm long. Male (pollen) catkins in small clusters at stem tips, about 5-8 cm long at pollination. Female flower catkins 2-3 cm long, erect, produced singly; mature seed catkins, woody, (cone-like), egg-shaped, 2.5-3 cm long.
- Sun. Does well in infertile, dry, high pH soil, but also does well near water.
- Hardy to USDA Zone 5 Native to Corsica and southern Italy.
- cordata: Latin, heart-shaped, the leaf base.
- Corvallis, Oregon: southeast corner, 30th St. and Johnson Ave.; 726 15th St.
- Portland, Oregon: Hoyt Arboretum