Tilia americana Tiliaceae
American Linden or Basswood TIL-i-a a-mer-i-KA-na
- Deciduous tree, 60-80 ft (18-24 m), pyramidal when young, when mature lower branches droop down but tips ascend, rounded form. Bark gray-brown, many long, narrow flat topped ridges. Leaves alternate, simple, 12-15 cm long, thick, tip abrubtly acuminate, base cordate or truncate, margin coarsley serrate with long pointed teeth, glossy to dull dark green above, lighter below, 3-5 veins arising at the base, tufts of hair in axils of lateral veins; petiole 2.5-7.5 cm long. Flowers pale yellow, 11-13 mm across, appear after leaves fully expanded, 5-10(15) per cluster, floral bract is 7-10 cm long. Globose fruit, 8-12 mm across, without ridges, covered with gray-brown pubescence.
- Sun to part shade. Best in deep, moist, fertile soil, but tolerates drier, heavier soils.
- Hardy to USDA Zone 3b Native range covers much of eastern North America; from New Brunswick and Maine west to southern Quebec, Ontario, Michigan, Minnesota, and Manitoba; south to eastern North Dakota, Nebraska, Kansas, Oklahoma; east to northern Arkansas, Tennessee, western North Carolina, and New Jersey.
- Tilia heterophylla [White Basswood] has leaves with densely whitish pubescence on the underside but otherwise very similar to Tilia americana and now it is included in T. americana.
- Corvallis: southwest corner 4th St. and Tyler Ave.