Flora of North America species comparison

decumbent or trailing;

branches yellow-brown, gray-brown, or red-brown, (often weakly glaucous, dull or slightly glossy), glabrous;

branchlets yellow-green or yellow-brown, usually glabrous, sometimes pilose to glabrescent.

stipules foliaceous, apex acute to acuminate;

petiole convex to flat, or shallowly grooved adaxially, 2–6(–9) mm, pilose or villous adaxially;

largest medial blade narrowly to broadly elliptic or narrowly ovate to ovate, 25–92 × 10–45 mm, 1.5–2.6(–3.4) times as long as wide, base convex, cuneate, or rounded, margins slightly revolute or flat, shallowly serrulate or entire, apex acuminate, acute, or convex, abaxial surface glaucous, sparsely pubescent, hairs wavy, adaxial dull to slightly glossy, pilose, sparsely pubescent or glabrous, midrib hairy, (hairs white and ferruginous);

proximal blade margins entire or finely serrulate;

juvenile blade sometimes reddish, sparsely pubescent abaxially, hairs white, sometimes also ferruginous.

stipules absent or rudimentary;

petiole 2–13 mm (longer than subtended bud);

largest medial blade usually amphistomatous, very narrowly to broadly elliptic, oblanceolate, or obovate, 19–44 × 7–21 mm, 1.5–4.6 times as long as wide, base cuneate or convex, margins flat, entire, apex acute, acuminate, convex, or rounded, abaxial surface pilose to glabrescent, hairs wavy, adaxial dull or slightly glossy, pilose or sparsely villous to glabrescent;

proximal blade margins entire;

juvenile blade villous or pilose abaxially, mainly on margin.

adaxial nectary oblong or square, 0.3–0.7 mm;

filaments distinct or basally connate, glabrous;

anthers purple turning yellow, 0.4–0.6 mm.

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

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

anthers ellipsoid, short-cylindric, or globose, 0.4–0.8 mm.

adaxial nectary square or obovate, 0.3–0.6 mm, usually shorter than stipe;

stipe 0.4–1.2 mm;

ovary pyriform, glabrous, beak gradually tapering to styles;

ovules 12–22 per ovary;

styles connate (sometimes distinct 1/2 their lengths), 0.2–0.5 mm;

stigmas flat, abaxially non-papillate with rounded tip, or broadly cylindrical, or 2 plump lobes, 0.2–0.32–0.44 mm.

adaxial nectary oblong, square, narrowly oblong, or ovate, 0.5–1.2 mm, equal to or longer than stipe;

stipe 0.2–0.8 mm;

ovary pyriform or obturbinate, sparsely to densely villous, beak gradually tapering to styles;

ovules 6–12 per ovary;

styles 0.4–1.6 mm;

stigmas flat, abaxially non-papillate with rounded or pointed tip, or broadly to slenderly cylindrical, 0.28–0.36–0.6 mm.

3.2–8 mm.

3.6–5 mm.

flowering as leaves emerge; staminate slender, stout, or subglobose, 14.5–34.5 × 8–12 mm, flowering branchlet 1–7 mm; pistillate moderately densely or loosely flowered, slender or stout, 21–59 × 6–16 mm, flowering branchlet 1.5–9 mm;

floral bract brown or bicolor, 1.2–1.8 mm, apex acute to rounded, abaxially glabrate to hairy, hairs straight to wavy.

staminate (ca. 50 flowers), 18–32 × 6–13 mm, flowering branchlet 3–13 mm; pistillate moderately densely to loosely flowered, (18–80 flowers), slender or stout, 18–59(–70 in fruit) × 6–15 mm, flowering branchlet 2–40 mm;

floral bract tawny or brown, 0.5–3.6 mm, apex acute or rounded, entire or 2-fid, abaxially hairy or ciliate, hairs straight or wavy.

= 38.

= 76.