OregonFlora species comparison

blades elliptic or ovate, 57–102 × 39–63 mm; firm, bases obtuse;

margins plane; coarse teeth absent or triangular; to 2 mm, finely serrulate except at leaf base; fine teeth bluntly triangular;

secondary veins 8–10 on each side;

tips rounded or obtuse;

surfaces abaxially pubescent; at least on veins, adaxially dry or somewhat sticky, inconspicuously appressed-pubescent;

petioles 9–21 mm, puberulent or with spreading hairs.

cylindrical, rounded, resinous;

scales 2, valvate; each scale as long as bud, stalked.

of both sexes develop in summer; open the following spring before leaves unfurl; male catkins, 3–5 in open terminal racemes, 7–9 cm × 4–5 mm.

cylindrical or ovoid-cylindrical, 11–17 × 7–9 mm, peduncles of terminal cones 5–13 mm long, 1.0–1.8 mm thick;

fruit wings 0.2–0.6 mm wide; opaque, grading into body of fruit.