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 or foliaceous on early ones, foliaceous on late ones, (0.6–8 mm), apex acute or obtuse;

petiole shallowly to deeply grooved adaxially, 2.5–8 mm, glabrous or villous adaxially;

largest medial blade (sometimes amphistomatous), narrowly to broadly elliptic, oblong to oblanceolate or obovate, 32–109 × 10–47 mm, 1.8–4.8 times as long as wide, base convex, cuneate, or subcordate, sometimes cordate, margins flat, entire, crenate, or serrulate, apex acute, convex, or acuminate, abaxial surface not glaucous, glabrous or pilose, hairs (white, sometimes also ferruginous), wavy, adaxial slightly glossy, glabrous, pilose, pubescent, moderately densely short-silky, or velvety, midrib remaining pilose or short-hairy, (hairs sometimes also ferruginous, straight and geniculate);

proximal blade margins serrulate or entire;

juvenile blade sometimes reddish or yellowish green, abaxially glabrous, or midrib sparsely pubescent, or densely villous or short-silky, 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 square, 0.2–0.4–0.6 mm;

filaments distinct, glabrous;

anthers purple turning yellow, 0.4–0.7 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 square or oblong, 0.2–0.4 mm, shorter than stipe;

stipe 0.8–1.4 mm;

ovary pyriform, glabrous, beak slightly bulged below styles;

ovules 11–18 per ovary;

styles 0.4–1.6 mm;

stigmas flat, abaxially non-papillate with rounded tip, or 2 plump lobes, 0.16–0.24–0.32 mm.

3.2–8 mm.

4.4–6.4 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 leaves emerge; staminate stout, 16.5–35.5 × 7–15 mm, flowering branchlet 0.5–12 mm; pistillate moderately or densely flowered, slender or stout, 10.5–68 × 5–20 mm, flowering branchlet 0.5–10 mm;

floral bract brown, black, tawny, or bicolor, 0.6–1.1 mm, apex retuse, abaxially hairy, hairs long-wavy or curly.

= 38.

= 76.