Tree to 25 m, to 1 m dbh; often multistemmed, rarely shrubby or prostrate. Branchlets dull or lustrous, somewhat glaucous, sparsely pubescent and with small yellowish brown glands. Buds resinous. Leaves deciduous, 3.5–9.5(–19) × (2–)3.5–9(–11) cm, ovate to elliptic, upper surface glabrous, lower surface with limited pubescence, 10–16 lateral veins on each side of the midvein, margins slightly revolute and serrate or serrulate, apex long-acuminate to acute, obtuse or rounded; petiole glabrous or pubescent, 0.7–1.6 cm long. Staminate inflorescences catkin-like, 3.5–15 cm long; pistillate inflorescences in racemes of two to four, pedunculate, globose to oblong, 0.3–0.8 × 0.15–0.32 cm. Cones woody, 1.5–3 × 0.8–1.2 cm, bracts 0.3–0.5 cm wide. Furlow 1979a. Distribution ARGENTINA: northern provinces; BOLIVIA; COLOMBIA; ECUADOR; PERU; VENEZUELA. Habitat Stream banks and moist slopes between 1500 and 2800 m asl. USDA Hardiness Zone 8–9. Conservation status Lower Risk (whole species).
Leaves lanceolate to narrowly ovate, lower surface glabrous; Mexico (Durango to Oaxaca)
Leaves ovate to obovate, lower surface pubescent
Leaves finely serrate or serrulate; South America (Venezuela to Argentina)
Leaves doubly serrate; Central America (Mexico to Panama)