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 (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.

stipules (sometimes marcescent), foliaceous, (3–23 mm), apex acuminate to acute;

petiole convex to flat, or shallowly grooved adaxially, 3–20 mm, tomentose adaxially, (strongly ventricose around floral buds);

largest medial blade broadly oblong, narrowly oblong, narrowly elliptic to elliptic, narrowly oblanceolate, oblanceolate, obovate, or broadly obovate, 50–110 × 13–35 mm, 2–4 times as long as wide, base cuneate or convex, margins strongly revolute, entire or crenate, apex acuminate, acute, or convex, abaxial surface glaucous or not (usually obscured by hairs, midrib yellowish), densely tomentose or villous-tomentose, hairs wavy, adaxial dull, sparsely or moderately densely villous (floccose) to glabrescent, (hairs white or gray);

proximal blade margins entire;

juvenile blade reddish or yellowish green (color often obscured by hairs), very densely woolly-tomentose abaxially, hairs white.

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 to oblong, 0.5–1.4 mm;

filaments distinct;

anthers purple turning yellow, long-cylindrical, 0.6–0.9 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.

adaxial nectary narrowly oblong, 0.6–1.6 mm;

stipe 0–0.4 mm;

ovary pyriform, (hairs refractive, wavy), beak gradually tapering to styles;

ovules 14–18 per ovary;

styles 1.3–2.8 mm;

stigmas 0.4–0.99–1.28 mm.

3–5 mm.

4–5 mm.

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.

flowering before leaves emerge; staminate stout, 23–55 × 13–27 mm, flowering branchlet 0–6 mm; pistillate densely flowered, slender to stout, 33–103 × 8–22 mm, flowering branchlet 0–13 mm;

floral bract brown or black, 1.5–2–2.5 mm, apex acute to convex, abaxially sparsely hairy, hairs straight.

= 38.