Flora of North America species comparison

(decumbent);

branches gray-brown, red-brown, or yellow-brown, not to strongly glaucous (dull or slightly glossy), pubescent;

branchlets gray-brown, red-brown, or yellow-brown, sparsely pubescent.

stipules absent, rudimentary, or foliaceous on early ones, foliaceous on late ones (apex acuminate);

petiole 1.5–8 mm, glabrous adaxially;

largest medial blade lorate, narrowly oblong, narrowly elliptic, narrowly oblanceolate, or linear, 30–133 × 5–20 mm, 3.4–8–15 times as long as wide, base cuneate or convex, margins flat, spinulose-serrulate or entire, apex acute, acuminate, or convex, abaxial surface glaucous or not, pilose, villous, or long-silky to glabrescent, hairs appressed or spreading, wavy, adaxial slightly glossy, villous to glabrescent;

proximal blade margins entire or serrulate;

juvenile blade reddish or yellowish green, densely villous abaxially.

stipules rudimentary, foliaceous, or absent on early ones, foliaceous on late ones (0.2–1.8(–5) mm);

petiole deeply to shallowly grooved adaxially, 1.5–8 mm, glabrous or pubescent adaxially;

largest medial blade (sometimes amphistomatous), elliptic, narrowly elliptic, obovate, or broadly obovate, 17–74 × 8–30 mm, 1.2–4.5 times as long as wide, base cuneate, convex, or subcordate, margins flat, serrulate, crenulate, or sinuate, apex acute, convex, or acuminate, abaxial surface not glaucous, glabrous, adaxial slightly glossy, glabrous;

proximal blade margins crenate;

juvenile blade reddish or yellowish green, glabrous.

abaxial nectary 0.3–0.9 mm, adaxial nectary narrowly oblong, oblong, or flask-shaped, 0.4–1.2 mm, nectaries distinct;

filaments densely hairy on proximal 1/2;

anthers 0.55–0.7–0.9 mm.

adaxial nectary oblong, ovate, or square, 0.2–0.34–0.4 mm;

filaments distinct, glabrous;

anthers purple turning yellow, 0.3–0.6 mm.

adaxial nectary ovate, oblong, or flask-shaped, 0.4–1.1 mm, longer than stipe, nectaries distinct or connate and cup-shaped;

stipe 0–0.7 mm;

ovary obclavate or pyriform, glabrous, beak abruptly tapering to styles;

ovules 13–22 per ovary;

styles 0–0.14–0.5 mm;

stigmas slenderly cylindrical or 2 plump lobes, 0.2–0.5 mm.

adaxial nectary square, oblong, or ovate, 0.2–0.4 mm, shorter than stipe;

stipe 0.6–1.7 mm;

ovary pyriform, glabrous, beak gradually tapering to or slightly bulged below styles;

ovules (6–)10–14 per ovary;

styles connate or distinct 1/2 their lengths, 0.3–0.7 mm;

stigmas flat, abaxially non-papillate with rounded tip, or 2 plump lobes, 0.16–0.23–0.32 mm.

4–5 mm.

4–6 mm.

staminate 18–48 × 5–13 mm, flowering branchlet 3–15 mm; pistillate moderately densely flowered, slender or stout, 22–58 × 4–9 mm, flowering branchlet 4–12 mm;

floral bract (sometimes brown), 1.3–2.8 mm, apex rounded (sometimes truncate), entire or erose, abaxially hairy mainly proximally, hairs wavy.

flowering as leaves emerge; staminate stout, 11.5–39 × 5–14 mm, flowering branchlet 0.5–6 mm; pistillate moderately densely flowered or densely flowered, slender or stout, 16–46(–50 in fruit) × 4–15 mm, flowering branchlet 1.5–12 mm;

floral bract brown, black, tawny, or bicolor, 0.4–1.1 mm, apex retuse or acute, abaxially hairy throughout or proximally, hairs curly or wavy.

= 38.