Flora of North America species comparison

stipules absent, rudimentary, or foliaceous on early ones, foliaceous on late ones, (1–16 mm), apex acute or acuminate;

petiole convex to flat adaxially, 2–13 mm, velvety or villous adaxially;

largest medial blade usually oblanceolate, sometimes narrowly elliptic, elliptic or obovate, 29–100 × 9–37 mm, 1.7–3.9 times as long as wide, base cuneate or convex, margins strongly to slightly revolute or flat, entire, remotely serrate, crenate, or sinuate, (glands submarginal or epilaminal), apex acuminate, convex, or rounded, abaxial surface glaucous, sparsely to densely short- to long-silky or woolly, hairs (white, sometimes also ferruginous), wavy or straight, adaxial slightly glossy, pilose or moderately densely short-silky, midrib velutinous or villous, (hairs white, sometimes also ferruginous);

proximal blade margins entire, serrulate, or crenulate;

juvenile blade reddish or yellowish green, sparsely to densely villous, short- or long-silky abaxially, hairs white, sometimes also ferruginous.

stipules absent or rudimentary;

petiole (sometimes deeply grooved adaxially) 0.2–1.5 mm, long- to short-silky adaxially;

largest medial blade linear, lorate, or narrowly oblanceolate, 13–42 × 1.1–4.4 mm, 5.8–24.6 times as long as wide, base cuneate, margins flat, usually entire, rarely remotely spinulose-serrulate, apex acute to acuminate (apiculate), abaxial surface glaucous or not (sometimes obscured by hairs), densely long-silky, or villous to glabrescent, hairs appressed, straight, adaxial slightly glossy or dull, moderately densely long- or short-silky to glabrescent;

proximal blade margins entire;

juvenile blade yellowish green (color obscured by hairs), very densely long-silky abaxially.

adaxial nectary oblong or square, 0.4–0.9 mm;

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

anthers purple turning yellow, ellipsoid to shortly cylindrical, 0.7–1.2 mm.

abaxial nectary 0.1–0.6 mm, adaxial nectary oblong or narrowly oblong, 0.5–1.1 mm, nectaries distinct;

filaments hairy on proximal 1/2 or basally;

anthers 0.4–0.7 mm.

adaxial nectary oblong or square, 0.2–0.8 mm, shorter than stipe;

stipe 0.8–2.3 mm;

ovary pyriform or obclavate, densely long-silky, beak slightly bulged below styles;

ovules 10–18 per ovary;

styles 0.2–0.6 mm;

stigmas slenderly cylindrical, 0.4–0.82–1.04 mm.

adaxial nectary square, narrowly oblong, ovate, or oblong, 0.4–1.4 mm, longer than stipe;

stipe 0–0.3 mm;

ovary pyriform, long-silky or pilose, beak gradually tapering to or bulged below styles;

ovules 16–26 per ovary;

styles 0–0.3 mm;

stigmas slenderly cylindrical, 0.4–0.6 mm.

4.5–11 mm.

3–6 mm.

flowering before leaves emerge; staminate stout or subglobose, 18–40.5 × 8–22 mm, flowering branchlet 0–4 mm; pistillate very densely flowered, slender or stout, 18–60(–90 in fruit) × 10–22 mm, flowering branchlet 0–8 mm;

floral bract brown, black, or bicolor, 1.5–4.5 mm, apex rounded or acute, abaxially hairy, hairs straight.

staminate 6.5–18 × 4–7 mm, flowering branchlet 1–38(–75) mm; pistillate moderately densely or loosely flowered, slender or stout, 6–16 × 4–7 mm, flowering branchlet 8–13(–120) mm;

floral bract 1.3–2.8 mm, apex acute or convex, toothed or entire (glandular-dotted), abaxially hairy throughout or proximally, hairs straight.

= 76.