Flora of North America species comparison

branches (highly brittle at base), gray-brown or violet, not glaucous, tomentose to glabrescent;

branchlets red-brown, violet, or mottled yellow-brown, sparsely to densely velvety.

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, late ones 1.2–4 mm, apex acute or acuminate;

petiole convex to flat, or shallowly grooved adaxially, 3.5–12(–21) mm, (sometimes 2 spherical glands distally), velvety adaxially;

largest medial blade lorate, narrowly oblong, or narrowly elliptic, (48–)54–82–100(–125) × (7–)9–16.7–25 mm, base cuneate or convex, margins flat, serrulate or crenulate, apex acute, acuminate, or convex, abaxial surface glaucous (sometimes obscured by hairs), densely short-silky, hairs straight, adaxial dull, sparsely pubescent to glabrescent;

proximal blade margins entire;

juvenile blade reddish or yellowish green, very densely short-silky abaxially, hairs white, sometimes also ferruginous.

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 ovate to oblong, 0.3–0.8 mm;

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

anthers purple turning yellow, 0.4–0.6 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, ovate, or flask-shaped, 0.4–0.7 mm;

ovary ovoid, beak abruptly tapering to styles;

ovules 6 per ovary;

styles 0.2–0.4 mm.

4.5–11 mm.

2.5–4 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 as or just before leaves emerge; staminate stout, 13.5–40 × 4–9 mm, flowering branchlet 0–2 mm; pistillate loosely to moderately densely flowered, slender to stout, 18–43 × 5–12 mm, flowering branchlet 1–3 mm;

floral bract dark brown, black, or bicolor, 0.8–1.5 mm, apex rounded, abaxially hairy, hairs straight or wavy.

= 76.