Flora of North America species comparison

reddish brown, slender, slightly scaly, sometimes pubescent.

rusty brown, slender, densely scaly, often pubescent.

3-6 dm;

petiole 3-10 cm, rachis sparingly hirsute near base, densely hirsute and scaly distally.

2-5 dm;

petiole 3-8 cm, glabrous or with scattered coarse hairs, or rarely pubescent, usually with dense coating of scales imparting rusty brown color.

(5-)7(-9), lateral petiolules 0-1 mm, terminal petiolules 2-5 mm;

blades ovate to obovate or elliptic, not falcate, 2-15 × 1-6 cm, margins finely to coarsely serrate, apex acuminate;

surfaces abaxially hirsute toward base of midrib, otherwise without hairs or rarely hirsute with unicellular and 2-8-rayed fasciculate hairs, abundant large peltate scales and small 4-lobed, irregular, and round peltate scales imparting silvery tan color, adaxially glabrous except for dense fasciculate hairs at base near leaf insertions, moderately to densely scaly in spring.

(5-)7(-9), lateral petiolules 0-1 mm, terminal petiolules 2-10 mm;

blades ovate to obovate, elliptic, or linear-elliptic, not falcate, 3-15 × 1-8 cm, margins finely to coarsely serrate, apex acuminate;

surfaces abaxially hirsute along base of midrib, otherwise without hairs or hirsute with unicellular and 2-8-rayed fasciculate hairs, densely covered in spring with a few silvery tan, large, peltate scales and many small, 4-lobed, irregular, and round peltate scales imparting rusty brown color, adaxially without hairs, moderately scaly, becoming glabrous.

tan to reddish brown, obovoid to spheric or ellipsoid, slightly compressed, 3-4 × 2-3 cm;

husks rough, 2-4 mm thick, dehiscing to middle or base, sutures smooth;

nuts tan, obovoid to spheric or ellipsoid, slightly compressed, not angled, rugulose;

shells thick.

bronze to reddish brown, obovoid to spheric, not compressed, 3-5 × 2.5-3.5 cm;

husks 2-4 mm thick, dehiscing to base or nearly so, sutures narrowly winged;

nuts tan, obovoid, slightly compressed, usually not angled, occasionally 2-4-angled, rugulose;

shells thick.

sweet.

sweet.

buds reddish brown, ovoid, 4-11 mm, sparsely to densely scaly;

outer bud scales with coarse hairs on midribs, bud scales imbricate;

axillary buds protected by bracteoles fused into hood.

buds rusty brown, ovoid, 4-9 mm, densely scaly;

bud scales imbricate;

axillary buds protected by bracteoles fused into hood.

catkins pedunculate, to 13 cm, stalks hirsute, scaly, bracts scaly, hirsute at apex;

anthers hirsute.

catkins pedunculate, to 16 cm, stalks with dense coating of rusty brown scales, bracts scaly, with hairs at apex;

anthers hirsute.

= 64.