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 rudimentary on early ones, foliaceous on late ones, apex acute or convex;

petiole convex to flat adaxially, 7–25 mm, tomentose to glabrescent adaxially;

largest medial blade narrowly elliptic, broadly elliptic, oblanceolate, obovate, or broadly oblong, 50–130 × 25–80 mm, 2–3 times as long as wide, base cuneate or convex, margins slightly revolute, entire, crenate, or sinuate, (glands submarginal or epilaminal), apex acuminate or convex, abaxial surface glaucous, sparsely tomentose or pubescent, hairs erect, wavy, adaxial dull or slightly glossy, sparsely pubescent;

proximal blade margins entire;

juvenile blade green, densely tomentose 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 oblong or square, 0.4–0.7 mm;

filaments distinct, glabrous;

anthers yellow, ellipsoid or shortly cylindrical, 0.7–1.1 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, narrowly oblong, or square, 0.4–0.9 mm, shorter than stipe;

stipe 2–2.5 mm;

ovary pyriform, densely short-silky, beak gradually tapering to styles;

ovules 12–14 per ovary;

styles 0.3–0.6 mm;

stigmas slenderly cylindrical, 0.4–0.55–0.6 mm.

3.2–8 mm.

6–12 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 before leaves emerge; staminate subglobose or globose, 16–39 × 12–30 mm, flowering branchlet 0–3 mm; pistillate densely flowered, stout or subglobose, 27–64 × 10–25 mm, flowering branchlet 0–7 mm;

floral bract dark brown or black, 2–4 mm, apex acute or rounded, abaxially hairy, hairs (white), straight.

= 38.

= 38.