Flora of North America species comparison

erect or decumbent;

branches gray-brown or red-brown, villous or short-silky to glabrescent;

branchlets red-brown, long-silky, villous, or woolly.

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

petiole (deeply to shallowly grooved adaxially), (0.5–)1–3(–4) mm, (usually shorter than or barely exceeding subtended bud);

largest medial blade hypostomatous, narrowly oblong, oblong, narrowly elliptic, elliptic, narrowly oblanceolate, ovate, or obovate, base rounded, convex, cordate, or subcordate, margins flat, entire, apex rounded, acute, or convex, abaxial surface (sometimes obscured by hairs), densely villous, woolly, or long-silky, adaxial slightly glossy, pilose, villous, or long-silky to glabrescent, (hairs straight or wavy);

proximal blade margins entire;

juvenile blade very densely long-silky 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 (0–)0.5–1.5 mm, adaxial nectary 0.5–1.4 mm, nectaries distinct or connate and cup-shaped;

filaments distinct or connate less than 1/2 their lengths, glabrous or hairy throughout or on proximal 1/2;

anthers ellipsoid, shortly cylindrical, or globose, 0.3–0.8 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 often present, adaxial nectary longer than stipe;

stipe 0–0.6 mm;

ovary pyriform, very densely villous, tomentose, or woolly, beak slightly bulged below styles;

ovules 2–10 per ovary;

styles connate to distinct 1/2 their lengths, 0.4–1.5 mm;

stigmas broadly or slenderly cylindrical, 0.24–0.3–0.48 mm.

(4–)5–8(–10) mm.

3–6.5 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 5.3–24 × 4–10 mm, flowering branchlet 0.3–24(–43) mm; pistillate (and staminate) densely flowered, globose, subglobose, or stout, 6–25 × 4–15 mm, flowering branchlet 0.3–11 mm;

floral bract tawny or greenish, 1–3 mm, apex rounded or convex, entire, abaxially hairy, hairs straight or wavy.

= 38.