Flora of North America species comparison

stipules foliaceous, apex acute to acuminate;

petiole convex to flat, or shallowly grooved adaxially, 2–6(–9) mm, pilose or villous adaxially;

largest medial blade narrowly to broadly elliptic or narrowly ovate to ovate, 25–92 × 10–45 mm, 1.5–2.6(–3.4) times as long as wide, base convex, cuneate, or rounded, margins slightly revolute or flat, shallowly serrulate or entire, apex acuminate, acute, or convex, abaxial surface glaucous, sparsely pubescent, hairs wavy, adaxial dull to slightly glossy, pilose, sparsely pubescent or glabrous, midrib hairy, (hairs white and ferruginous);

proximal blade margins entire or finely serrulate;

juvenile blade sometimes reddish, sparsely pubescent abaxially, hairs white, sometimes also ferruginous.

stipules absent, rudimentary, or foliaceous on early ones, foliaceous on late ones, (2.5–9 mm), apex rounded or convex;

petiole convex to flat, or shallowly grooved adaxially, 5–11 mm, tomentose or velvety adaxially;

largest medial blade lorate, oblanceolate, or elliptic, 55–96 × 15–34 mm, 2–3.7 times as long as wide, base convex, margins slightly revolute, entire, sinuate or serrulate, apex acuminate to acute, abaxial surface glaucous, sparsely pubescent to moderately densely tomentose or glabrous, hairs (white, sometimes also ferruginous), straight or curved, adaxial slightly glossy, sparsely tomentose to glabrescent;

proximal blade margins entire or serrulate;

juvenile blade reddish, very densely tomentose or puberulent to glabrescent abaxially, hairs white, sometimes also ferruginous.

adaxial nectary oblong or square, 0.3–0.7 mm;

filaments distinct or basally connate, glabrous;

anthers purple turning yellow, 0.4–0.6 mm.

adaxial nectary narrowly oblong, oblong, or ovate, 0.3–0.8 mm;

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

anthers purple turning yellow, ellipsoid, shortly cylindrical, or globose, 0.36–0.44 mm.

adaxial nectary square or obovate, 0.3–0.6 mm, usually shorter than stipe;

stipe 0.4–1.2 mm;

ovary pyriform, glabrous, beak gradually tapering to styles;

ovules 12–22 per ovary;

styles connate (sometimes distinct 1/2 their lengths), 0.2–0.5 mm;

stigmas flat, abaxially non-papillate with rounded tip, or broadly cylindrical, or 2 plump lobes, 0.2–0.32–0.44 mm.

adaxial nectary oblong, or narrowly oblong to flask-shaped, 0.2–0.6 mm;

stipe 1–1.7(–2.4) mm;

ovary pyriform, beak sometimes slightly bulged below styles;

ovules 12 per ovary;

styles 0.1–0.6 mm;

stigmas flat, abaxially non-papillate with rounded or pointed tip, 0.1–0.3 mm.

3.2–8 mm.

2.4–3.6 mm.

flowering as leaves emerge; staminate slender, stout, or subglobose, 14.5–34.5 × 8–12 mm, flowering branchlet 1–7 mm; pistillate moderately densely or loosely flowered, slender or stout, 21–59 × 6–16 mm, flowering branchlet 1.5–9 mm;

floral bract brown or bicolor, 1.2–1.8 mm, apex acute to rounded, abaxially glabrate to hairy, hairs straight to wavy.

flowering as or just before leaves emerge; staminate stout, 17–30 × 7–9 mm, flowering branchlet 1.5–5 mm; pistillate very densely flowered, stout to slender, 17–42 × 6–11 mm, flowering branchlet 1.5–3 mm;

floral bract brown or bicolor, 0.8–1.6 mm, apex rounded to truncate, abaxially hairy throughout or proximally, hairs wavy or straight.

= 38.