Flora of North America species comparison

stipules absent or rudimentary on early ones, rudimentary or foliaceous on late ones;

petiole 1–5(–9) mm, glabrous or sparsely villous adaxially;

largest medial blade linear to lorate, 60–160 × 4–11 mm, (6.5–)11–19(–31) times as long as wide, base cuneate, margins flat, remotely spinulose-serrulate (teeth 2–5 per cm), apex acute or subacuminate, abaxial surface thinly glaucous, densely villous or long-silky to glabrescent, adaxial slightly glossy, pilose or densely villous to glabrescent;

proximal blade margins entire;

juvenile blade reddish or yellowish green, moderately densely to sparsely long-silky abaxially.

stipules foliaceous, apex acute or convex;

petiole convex to flat adaxially, 2–9 mm, velvety adaxially;

largest medial blade obovate, broadly obovate, or elliptic, 27–85 × 14–35 mm, 1.5–2.8 times as long as wide, base convex or cuneate, margins slightly revolute, entire, remotely or irregularly serrate, or crenate, (glands submarginal), apex acuminate or convex, abaxial surface glaucous, pubescent or pilose, hairs (white, sometimes also ferruginous) spreading or erect, wavy or crinkled, adaxial dull or slightly glossy, pubescent or pilose to glabrescent, veins more hairy, (hairs white, sometimes also ferruginous);

proximal blade margins entire;

juvenile blade reddish or yellowish green, densely tomentose to glabrescent abaxially, hairs white.

abaxial nectary 0.5–1.1 mm, adaxial nectary ovate, narrowly oblong, or flask-shaped, 0.6–1.4 mm, nectaries distinct;

filaments hairy;

anthers 0.4–0.9 mm.

adaxial nectary oblong or square, 0.3–0.7 mm;

filaments distinct, glabrous or hairy on proximal 1/2 or basally;

anthers purple turning yellow, ellipsoid or shortly cylindrical, 0.5–0.8 mm.

adaxial nectary narrowly oblong, 0.4–1.1 mm, shorter to longer than stipe;

stipe 0.4–0.8 mm;

ovary obclavate to pyriform, glabrous, glabrescent, or long-silky, beak abruptly tapering to styles;

ovules 16–36 per ovary;

styles 0–0.2 mm;

stigmas flat, abaxially non-papillate with pointed tip, or broadly cylindrical, 0.3–0.7 mm.

adaxial nectary oblong or square, 0.3–0.7 mm, shorter than stipe;

stipe 1.4–2.6 mm;

ovary pyriform, densely short-silky, hairs wavy or crinkled, beak sometimes slightly bulged below styles (long-beaked);

ovules 10–12 per ovary;

styles 0–0.3 mm;

stigmas broadly cylindrical, 0.25–0.37–0.5 mm.

(4–)5–8(–10) mm.

4–13 mm.

(flowering throughout season); staminate 20–61 × 4–10 mm, flowering branchlet 3–20 mm; pistillate loosely flowered, slender or stout, 20–67 × 5–9 mm, flowering branchlet 3–19 mm;

floral bract (sometimes greenish), 1.5–3.5 mm, apex acute, acuminate, or rounded, entire, erose, or toothed, abaxially hairy either proximally or distally, hairs wavy.

flowering before leaves emerge; staminate subglobose or globose, 15.5–21.5 × 10–15 mm, flowering branchlet 0.5–4 mm; pistillate loosely to moderately densely flowered, 15–37 × 9–20, flowering branchlet 2.5–7 mm;

floral bract brown, tawny, or bicolor, 1–2.2 mm, apex acute or tapering and rounded, abaxially hairy, hairs straight.

= 38.

= 76, 38.