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 broad rudiments or foliaceous on early ones, foliaceous on late ones, (glands numerous adaxially), apex rounded to convex;

petiole (sometimes with spherical glands distally), 4–10 mm, pilose adaxially;

largest medial blade (sometimes amphistomatous), narrowly elliptic, very broadly oblong, lorate, or linear, 67–130 × 9.5–16 mm, 4.7–12.4 times as long as wide, base cuneate to convex, margins serrulate to serrate, apex acuminate, caudate, or acute, abaxial surface (usually not glaucous, rarely thinly so), glabrous or puberulent, hairs wavy, adaxial slightly glossy, pilose to glabrescent;

proximal blade margins entire or shallowly serrulate;

juvenile blade sparsely velvety to pilose abaxially, hairs white.

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.

abaxial nectary (0.2–)0.3–0.6 mm, adaxial nectary square to ovate, 0.2–0.6 mm, nectaries distinct;

stamens 4–6(–8);

filaments (sometimes basally connate), hairy on proximal 1/2;

anthers 0.4–0.5 mm, (axes straight).

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 (flattened), 0.2–0.6 mm;

stipe 1.2–3.2 mm;

ovary pyriform, (sometimes villous), beak slightly bulged or abruptly tapering to styles;

ovules 12–18 per ovary;

styles 0.1–0.3 mm;

stigmas 0.2–0.29–0.32 mm.

3.2–8 mm.

6–7 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.

staminate 19–80 × 6–10 mm, flowering branchlet 2–23 mm; pistillate 23–82 × 6–15 mm, flowering branchlet 2–48 mm;

floral bract 1.4–2.4 mm, apex acute or rounded, entire or toothed, abaxially sparsely to moderately densely hairy, hairs wavy; pistillate bract deciduous after flowering.

= 38.

= 38.