Native to (or naturalized in) Oregon:
- Deciduous tree, 60-70 ft (18-21 m), pyramidal when young, then upright-oval to pyramidal-rounded. Bark gray-brown. Leaves alternate, simple, somewhat circular in outline, 4-10 cm long, cordate (heart-shaped), finely serrated, somewhat glossy above, paler and glabrous beneath except for axillary tufts of brown hairs, fall color is often yellow-green. Flowers produced in late June or early July, 5-7 per pendulous cluster, floral bract is 4-9 cm long. Globose fruit, slightly or not ridged, covered with gray pubescence, finally glabrous.
- Sun. Tolerates pollution. Used as a street tree for centuries. Can be pruned into a hedge.
- A number of cultivars, a dominate one is Greenspire®
- Hardy to USDA Zone (3) 4 Native to Europe.
- Oregon State Univ. campus: SE corner USDA Forage Seed Lab on Campus Way (near 30th St.); a long row of trees on the south side of Monroe Ave. from 14th St. to nearly to 9th St.
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