Flora of North America species comparison

prostrate, short-trailing;

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

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

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

petiole 1–5(–9) mm, glabrous or sparsely villous adaxially;

largest medial blade linear to lorate, 60–160 × 4–11 mm, (6.5–)11–19(–31) times as long as wide, base cuneate, margins flat, remotely spinulose-serrulate (teeth 2–5 per cm), apex acute or subacuminate, abaxial surface thinly glaucous, densely villous or long-silky to glabrescent, adaxial slightly glossy, pilose or densely villous to glabrescent;

proximal blade margins entire;

juvenile blade reddish or yellowish green, moderately densely to sparsely long-silky abaxially.

stipules (sometimes marcescent) absent, rudimentary, or foliaceous on early ones, foliaceous on late ones;

petiole (shallowly to deeply grooved adaxially), 2–6.5 mm;

largest medial blade (marcescent), amphistomatous or hypostomatous, ovate, broadly obovate, oblanceolate, or elliptic, 4–23 × 3.5–10 mm, 1.7–3.6 times as long as wide, base convex or cuneate, margins flat, serrulate or crenulate, apex convex, acuminate, acute, or retuse, abaxial surface glaucous, usually glabrous (rarely few hairs), adaxial slightly or highly glossy, usually glabrous (rarely a few hairs);

proximal blade margins entire or serrate;

juvenile blade glabrous, pilose, or puberulent abaxially.

abaxial nectary 0.5–1.1 mm, adaxial nectary ovate, narrowly oblong, or flask-shaped, 0.6–1.4 mm, nectaries distinct;

filaments hairy;

anthers 0.4–0.9 mm.

abaxial nectary absent, adaxial nectary narrowly oblong or oblong, 0.4–0.9 mm;

filaments distinct, glabrous;

stamens usually 1, rarely 2;

anthers ellipsoid or shortly cylindrical, 0.4–0.7 mm.

adaxial nectary narrowly oblong, 0.4–1.1 mm, shorter to longer than stipe;

stipe 0.4–0.8 mm;

ovary obclavate to pyriform, glabrous, glabrescent, or long-silky, beak abruptly tapering to styles;

ovules 16–36 per ovary;

styles 0–0.2 mm;

stigmas flat, abaxially non-papillate with pointed tip, or broadly cylindrical, 0.3–0.7 mm.

abaxial nectary absent, adaxial nectary narrowly oblong or oblong, 0.5–0.8 mm, shorter to longer than stipe;

stipe 0.3–1.6 mm;

ovary ovoid or pyriform, glabrous, beak gradually tapering to styles;

ovules 4–9 per ovary;

styles 0.4–1 mm;

stigmas flat, abaxially non-papillate with rounded tip, or slenderly cylindrical, 0.1–0.23–0.4 mm.

(4–)5–8(–10) mm.

3–5 mm.

(flowering throughout season); staminate 20–61 × 4–10 mm, flowering branchlet 3–20 mm; pistillate loosely flowered, slender or stout, 20–67 × 5–9 mm, flowering branchlet 3–19 mm;

floral bract (sometimes greenish), 1.5–3.5 mm, apex acute, acuminate, or rounded, entire, erose, or toothed, abaxially hairy either proximally or distally, hairs wavy.

staminate 9–19 × 5–8 mm, flowering branchlet 0.5–9 mm; pistillate densely flowered, slender to subglobose, 11–47(–55 in fruit) × 6–10 mm, flowering branchlet 2–10 mm;

floral bract brown, black, tawny, light rose, or bicolor, 1.1–1.8 mm, apex rounded or acute, entire, abaxially sparsely hairy, hairs straight or wavy.

= 38.

= 38.