Flora of North America species comparison

erect, decumbent, or trailing;

branches red-brown, glabrous;

branchlets yellow-brown or red-brown, glabrous.

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 on early ones, foliaceous on late ones;

petiole 1.5–4.9–14 mm;

largest medial blade amphistomatous or hemiamphistomatous, elliptic, subcircular, or circular, 8–25 × 4–22 mm, 0.8–2.3 times as long as wide, base convex or rounded, margins slightly revolute, entire, sometimes ciliate, apex rounded or convex, abaxial surface glabrous, adaxial slightly glossy, glabrous;

proximal blade margins entire;

juvenile blade (reddish), glabrous, often ciliate.

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 0.6–1 mm, adaxial nectary narrowly oblong to ovate, 0.6–1.3 mm, nectaries distinct;

filaments distinct;

anthers ellipsoid to globose, 0.4–0.6 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.

abaxial nectary absent, adaxial nectary narrowly oblong, ovate, or irregularly square, 0.6–1.4 mm, longer than stipe;

stipe 0.2–1 mm;

ovary obnapiform, not glaucous, usually glabrous, sometimes pubescent or short-silky, with hairs in patches or streaks, beak abruptly tapering to styles;

ovules 9–18 per ovary;

styles connate or distinct 1/2 their lengths, 0.5–1.4 mm;

stigmas flat, abaxially non-papillate with rounded tip, or slenderly cylindrical, 0.24–0.32–0.4 mm.

4.5–11 mm.

3–5 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 5.5–14 × 5–10 mm, flowering branchlet 1–6 mm; pistillate moderately densely flowered, globose, subglobose, or stout, 8–29 × 6–14 mm, flowering branchlet 1.5–20 mm;

floral bract brown, 1–1.8 mm, apex rounded, abaxially sparsely hairy or ciliate, hairs straight or wavy.

= 76.