United States, District Of Columbia, District Of Columbia, U.S. National Arboretum, Nursery #5.
Cultivated.
Somewhat pyramidal, ascending tree; ht. ca. 30 ft.; DBH 7 in.; lvs. dark green, slightly glossy, paler beneath; bark brown changing to gray, uniformly furrowed; fruit green changing to brown, spherical, very few reaching maturity.