Flora of North America species comparison

erect or trailing;

branches yellow-brown or gray-brown, (sometimes weakly glaucous), glabrous;

branchlets yellow-green or yellow-brown, glabrous or puberulent.

(marcescent);

stipules absent;

petiole 1.5–5 mm;

largest medial blade usually amphistomatous, narrowly elliptic or elliptic, 9–26 × 3.8–7.5 mm, 2.4–4.3 times as long as wide, base cuneate, margins flat, entire, ciliate, apex acute, acuminate, or convex, abaxial surface glabrous or pilose, hairs wavy, adaxial slightly glossy, glabrous or pilose;

proximal blade margins entire;

juvenile blade glabrous or sparsely villous abaxially.

stipules foliaceous, (prominent), apex rounded or acute;

petiole convex to flat, or shallowly grooved adaxially, 6–16 mm, velvety or pilose adaxially;

largest medial blade narrowly oblong, elliptic, or broadly elliptic, 54–100 × 18–35 mm, 1.8–3.6 times as long as wide, base convex, rounded, subcordate, or cordate, margins flat, serrate or serrulate (teeth sometimes elongate), apex acuminate to acute, abaxial surface not glaucous, glabrous, adaxial dull, glabrous or pilose, midrib hairy;

proximal blade margins entire or serrulate;

juvenile blade reddish or yellowish green, glabrous or sparsely short- or long-silky abaxially, hairs white.

abaxial nectary (0–)0.2–0.6 mm, adaxial nectary oblong or square, 0.4–1.2 mm, nectaries distinct;

filaments distinct or basally connate;

anthers ellipsoid, 0.3–0.6 mm.

adaxial nectary narrowly oblong, 0.6–1.1 mm;

filaments distinct or slightly connate, glabrous;

anthers purple turning yellow, (ellipsoid or shortly cylindrical), 0.5–0.7 mm.

adaxial nectary oblong or square, 0.5–1.2 mm, longer than stipe;

stipe 0–0.6 m;

ovary pyriform, usually densely villous, beak abruptly tapering to or slightly bulged below styles;

ovules 6–10 per ovary;

styles 0.3–1 mm;

stigmas slenderly cylindrical, 0.28–0.39–0.56 mm.

adaxial nectary narrowly oblong, oblong, or flask-shaped, 0.3–1.1 mm, shorter than stipe;

stipe 1.4–3.6 mm;

ovary pyriform, glabrous, beak sometimes slightly bulged below styles;

ovules 18–22 per ovary;

styles 0.2–0.5 mm;

stigmas flat, abaxially non-papillate with rounded tip, or broadly cylindrical, 0.2–0.23–0.26 mm.

3.5–5 mm.

3.6–5.2 mm.

staminate (20–50 flowers), 12.5–26.5 × 5.5–9 mm, flowering branchlet 1–11 mm; pistillate moderately densely to loosely flowered, (15–35(–43) flowers), stout or subglobose, 10–23(–30 in fruit) × 5–8 mm, flowering branchlet 2–9 mm;

floral bract brown, 1.6–2.6 mm, apex rounded, entire, abaxially sparsely hairy or ciliate, hairs wavy or straight.

flowering as or just before leaves emerge; staminate stout or slender, 24–43(–52 in fruit) × 6–11 mm, flowering branchlet 1–4 mm; pistillate moderately densely to loosely flowered, stout, 33–73 × 8–16 mm, flowering branchlet 2–12 mm;

floral bract brown, 0.7–1.6 mm, apex rounded, convex, or acute, abaxially hairy throughout or proximally, hairs wavy or curly.