Flora of North America species comparison

branches yellow-brown or red-brown, not glaucous, glabrous;

branchlets yellow-brown or red-brown, densely pubescent or tomentose.

stipules absent, rudimentary, or foliaceous on early ones, foliaceous on late ones, (1–16 mm), apex acute or acuminate;

petiole convex to flat adaxially, 2–13 mm, velvety or villous adaxially;

largest medial blade usually oblanceolate, sometimes narrowly elliptic, elliptic or obovate, 29–100 × 9–37 mm, 1.7–3.9 times as long as wide, base cuneate or convex, margins strongly to slightly revolute or flat, entire, remotely serrate, crenate, or sinuate, (glands submarginal or epilaminal), apex acuminate, convex, or rounded, abaxial surface glaucous, sparsely to densely short- to long-silky or woolly, hairs (white, sometimes also ferruginous), wavy or straight, adaxial slightly glossy, pilose or moderately densely short-silky, midrib velutinous or villous, (hairs white, sometimes also ferruginous);

proximal blade margins entire, serrulate, or crenulate;

juvenile blade reddish or yellowish green, sparsely to densely villous, short- or long-silky abaxially, hairs white, sometimes also ferruginous.

stipules absent or rudimentary on early ones;

petiole shallowly grooved adaxially, 2–5 mm, tomentose or velvety adaxially;

largest medial blade linear, narrowly oblong, narrowly oblanceolate, or narrowly elliptic, 5–160 × 3–10(–20) mm, base cuneate, margins strongly or slightly revolute, entire or serrulate, (glands submarginal or epilaminal), apex acuminate or acute, abaxial surface glaucous, densely tomentose or woolly, (midribs yellowish, prominent), hairs appressed, curved, adaxial dull or slightly glossy, sparsely pubescent to glabrescent;

proximal blade margins entire;

juvenile blade yellowish green, densely tomentose abaxially, hairs white or gray.

adaxial nectary oblong or square, 0.4–0.9 mm;

filaments distinct, glabrous or hairy on proximal 1/2;

anthers purple turning yellow, ellipsoid to shortly cylindrical, 0.7–1.2 mm.

adaxial nectary oblong or square, 0.3–0.9 mm;

filaments connate less or more than 1/2 their lengths;

anthers yellow, 0.5–0.7 mm.

adaxial nectary oblong or square, 0.2–0.8 mm, shorter than stipe;

stipe 0.8–2.3 mm;

ovary pyriform or obclavate, densely long-silky, beak slightly bulged below styles;

ovules 10–18 per ovary;

styles 0.2–0.6 mm;

stigmas slenderly cylindrical, 0.4–0.82–1.04 mm.

adaxial nectary oblong or square, 0.3–0.7 mm;

ovary obclavate, beak gradually tapering to styles;

ovules 2 per ovary;

styles 0.7–0.9 mm.

4.5–11 mm.

3–5 mm.

flowering before leaves emerge; staminate stout or subglobose, 18–40.5 × 8–22 mm, flowering branchlet 0–4 mm; pistillate very densely flowered, slender or stout, 18–60(–90 in fruit) × 10–22 mm, flowering branchlet 0–8 mm;

floral bract brown, black, or bicolor, 1.5–4.5 mm, apex rounded or acute, abaxially hairy, hairs straight.

flowering just before or as leaves emerge; staminate stout or slender, 26–34 × 6–10 mm, flowering branchlet 1–1.5 mm; pistillate moderately to very densely flowered, slender or stout, 19–40 × 3–10 mm, flowering branchlet 0.3–3.5 mm;

floral bract light brown or tawny, 1.5–4 mm, apex rounded, truncate, or acute, entire or toothed, abaxially hairy, hairs straight.

= 76.

= 38.