Flora of North America species comparison

reddish brown, stout, hirsute and scaly.

brown to bronze, slender, without hairs, densely scaly.

3-5 dm;

petiole 3-12 cm, petiole and rachis hirsute, with conspicuous large and small round peltate scales.

3-6 dm;

petiole 3-10 cm, densely scaly.

(5-)7-9, lateral petiolules 0-2 mm, terminal petiolules 2-13 mm;

blades ovate to elliptic or obovate, not falcate, 4-19 × 2-8 cm, margins finely to coarsely serrate, apex acute, rarely acuminate;

surfaces abaxially hirsute with unicellular, 2-8-rayed fasciculate and multiradiate hairs, and with large and small round peltate scales abundant, adaxially hirsute along midrib and major veins, puberulent with fasciculate hairs and scales in spring.

(5-)7-9, lateral petiolules 0-2 mm, terminal petiolules 2-3 mm;

blades ovate or obovate to elliptic, not falcate, 3-17 × 1-8 cm, margins finely to coarsely serrate, without tufts of hairs, apex acuminate;

surfaces abaxially with unicellular and 2-4-rayed fasciculate hairs along midrib in spring, densely scaly with coating of large peltate scales and small irregular, round, and 4-lobed peltate scales, imparting bronze color, adaxially pubescent along midrib and major veins in spring, with scattered peltate scales.

reddish brown, finely mottled, spheric to ellipsoid or obovoid, not compressed to compressed, 3-5 × 3-5 cm;

husks rough, 4-10 mm thick, dehiscing to middle or nearly to base, sutures smooth;

nuts tan, spheric to ellipsoid, compressed, prominently to faintly 4-angled, rugulose;

shells thick.

light tan to bronze, obovoid to ellipsoid, not compressed, 2-3 × 1.5-2 cm;

husks rough, 2 mm thick, dehiscing to base, sutures winged;

nuts reddish brown mottled with tan patches, ellipsoid, not compressed, not angled, smooth;

shells thick.

sweet.

sweet.

buds tan (after early loss of outer scales), broadly ovoid, 8-20 mm, tomentose;

bud scales imbricate;

axillary buds protected by bracteoles fused into hood.

buds bronze, ovoid, 4-6 mm, essentially without hairs, densely scaly;

bud scales valvate;

axillary buds protected by bracteoles fused into hood.

catkins pedunculate, to 14 cm, stalks and bracts hirsute, scaly, apex of each bract with coarse hairs;

anthers hirsute.

catkins pedunculate, to 6 cm, stalks and bracts scaly;

anthers hirsute.

= 64.

= 32.