Flora of North America species comparison

trailing or erect;

branches yellow-brown or red-brown, glabrous or pubescent;

branchlets yellow-brown or red-brown, glabrous or pilose.

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

petiole deeply to shallowly grooved adaxially, 5–15 mm, with pairs or clusters of spherical glands distally or throughout, glabrous adaxially;

largest medial blade hypostomatous, narrowly elliptic, elliptic, or lanceolate, 50–135 × 20–50 mm, 2–4 times as long as wide, base convex, margins slightly revolute or flat, serrulate, apex acuminate, abaxial surface pale not glaucous, glabrous, adaxial highly glossy, glabrous;

proximal blade margins entire or serrulate;

juvenile blade reddish, glabrous abaxially.

stipules absent or rudimentary;

petiole 1.5–7 mm (sometimes glandular distally or throughout);

largest medial blade hypostomatous, (veins impressed-reticulate, 2 pairs of secondary veins arising at or close to base, arcing toward apex,), elliptic to broadly elliptic, 6–22 × 4–15 mm, 1.1–2.8 times as long as wide, base convex, rounded, subcordate, or cuneate, margins slightly revolute, entire (glandular-dotted), apex convex, rounded, or retuse, abaxial surface glabrous or with long-silky hairs, adaxial slightly glossy, glabrous;

proximal blade margins entire;

juvenile blade glabrous.

abaxial nectary 0.6–1.7 mm, adaxial nectary square, ovate, or oblong, 0.5–1.5 mm, nectaries distinct or ± connate and cup-shaped;

stamens 4–10;

filaments distinct, hairy on proximal 1/2;

anthers ellipsoid or globose, 0.5–0.6 mm.

abaxial nectary 0.5–1.3 mm, adaxial nectary narrowly oblong, oblong, or square, 0.5–1.2 mm, nectaries connate and cup-shaped;

filaments distinct, glabrous or hairy basally;

anthers ellipsoid or shortly cylindrical, 0.4–0.6 mm.

(abaxial nectary present or absent), adaxial nectary oblong, square, or ovate, 0.4–0.8 mm, (nectaries distinct or connate and shallowly cup-shaped), shorter than or equal to stipe;

stipe 0.5–1.6 mm;

ovary pyriform, beak bulged below or tapering to styles;

ovules 18–22 per ovary;

styles connate or distinct, 0.4–0.6 mm;

stigmas flat, abaxially non-papillate with rounded tip, or slenderly cylindrical, 0.4–0.6 mm.

abaxial nectary (0–)0.2–0.5 mm, adaxial nectary oblong, 0.2–1 mm, longer than stipe, nectaries distinct or connate and shallowly cup-shaped;

stipe 0–0.8 mm;

ovary obturbinate, short-silky, hairs flattened, beak abruptly tapering to styles;

ovules 8–10 per ovary;

styles distinct to connate 1/2 their lengths, 0.2–0.4 mm;

stigmas flat, abaxially non-papillate with rounded tip, 0.2–0.26–0.36 mm.

6–9 mm.

3–4 mm.

staminate 27–81 × 9–13 mm, flowering branchlet 9–21 mm; pistillate moderately to densely flowered, slender or stout, 29–68 × 7–15 mm, flowering branchlet 9–42 mm;

floral bract 2–4 mm, apex acute or rounded to truncate, entire or toothed, abaxially sparsely hairy (mainly proximally), hairs wavy or straight.

staminate 7–19 × 2.5–6 mm, flowering branchlet 0.5–17 mm; pistillate densely to loosely flowered (4–17 flowers), stout, subglobose or globose, 7–21 × 2–9 mm, flowering branchlet 1–10 mm;

floral bract tawny or light rose, 0.8–1.8 mm, apex rounded, entire, abaxially glabrous.

= 76.

= 38.