Flora of North America species comparison

trailing;

branches yellow-brown or red-brown, glabrous;

branchlets yellow-brown or red-brown, pubescent, pilose, or glabrescent.

stipules rudimentary or foliaceous on early ones, foliaceous on late ones, apex acute or rounded;

petiole convex to flat adaxially, 4–15 mm, tomentose adaxially;

largest medial blade elliptic, broadly elliptic, oblanceolate, or obovate, 65–105 × 22–52 mm, 2–3 times as long as wide, base convex or cuneate, margins slightly revolute, entire, crenate, or sinuate, (glands submarginal), apex acuminate or convex, abaxial surface glaucous, tomentose, hairs erect or spreading, curly, adaxial dull or slightly glossy, pubescent or tomentose;

proximal blade margins entire;

juvenile blade yellowish green, sparsely to densely tomentose abaxially, hairs white.

stipules absent or rudimentary;

petiole 1.5–2 mm (glabrous or pubescent adaxially);

largest medial blade (2 pairs of secondary veins arising at or close to base, arcing toward apex) broadly elliptic, subcircular, broadly ovate, or elliptic, 9–22(–30) × 7.5–14(–19) mm, 1.2–2 times as long as wide, base rounded, subcordate, cordate, or convex, margins flat or slightly revolute, entire or serrulate, apex convex, rounded, or retuse, abaxial surface glabrous, adaxial highly glossy, glabrous;

proximal blade margins entire or serrulate;

juvenile blade pilose or puberulent abaxially.

adaxial nectary oblong or ovate, 0.5–1 mm;

filaments distinct, glabrous or hairy basally;

anthers yellow or purple turning yellow, ellipsoid or shortly cylindrical, 0.7–1 mm.

abaxial nectary (0.3–)0.5–0.7 mm, adaxial nectary narrowly oblong or oblong, 0.7–1.1 mm, nectaries distinct, or connate and cup-shaped;

filaments distinct or connate less than 1/2 their lengths, glabrous;

anthers ellipsoid, 0.4–0.5 mm.

adaxial nectary oblong or square, 0.4–1 mm, shorter than stipe;

stipe 1.2–2.7 mm;

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

ovules 12 per ovary;

styles 0.2–0.5 mm;

stigmas slenderly or broadly cylindrical, 0.3–0.6 mm.

abaxial nectary (0–)0.6–0.9 mm, adaxial nectary narrowly oblong or oblong, 0.6–1.4 mm, longer than stipe, nectaries connate and shallowly cup-shaped;

stipe 0–0.7 mm;

ovary pyriform, glabrous, beak slightly bulged below styles;

ovules 8–10 per ovary;

styles 0.2–1 mm;

stigmas flat, abaxially non-papillate with rounded tip, or broadly cylindrical, 0.2–0.27–0.32 mm.

5–5.6 mm.

3.5–7.5 mm.

flowering before leaves emerge; staminate stout or subglobose, 26–39 × 12–26 mm, flowering branchlet 0–5 mm; pistillate densely flowered, stout or subglobose, 27–54(–75 in fruit) × 4–15 mm, flowering branchlet 1–5(–10) mm;

floral bract dark brown, black, or bicolor, 2–3 mm, apex acute or convex, abaxially hairy, hairs straight.

from lateral buds; staminate (3–8 flowers), 3.2–6.6 × 2–5.2 mm, flowering branchlet 0.8–4.6 mm; pistillate loosely flowered (3–5 flowers), shape indeterminate, 7.5–13 × 3–10 mm, flowering branchlet 0.5–10 mm;

floral bract tawny, 0.6–1.4 mm, apex rounded or truncate, entire, abaxially glabrous or sparsely hairy.

= 76.

= 38.