Flora of North America species comparison

erect, decumbent, or trailing;

branches gray-brown, yellow-brown, or red-brown, pilose, villous, or long-silky to glabrescent;

branchlets violet, red-brown, or yellow-brown, pilose, densely villous, long-silky, or tomentose.

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 (sometimes marcescent), foliaceous, (sometimes obscured by hairs);

petiole (shallowly grooved adaxially), 2–5.5 mm, (usually shorter than or barely exceeding subtended bud, villous adaxially);

largest medial blade hypostomatous or amphistomatous, narrowly oblong, narrowly to broadly elliptic, lanceolate, or obovate, 13–64 × 6–22 mm, 1.6–5.5 times as long as wide, base convex, margins slightly revolute, entire (obscured by hairs), apex acuminate or acute, abaxial surface densely villous or woolly to pilose, hairs straight or wavy, adaxial slightly glossy, moderately densely to sparsely villous;

proximal blade margins entire;

juvenile blade abaxially densely long-silky.

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.

abaxial nectary 0.5–1.2 mm, adaxial nectary narrowly oblong to ovate or flask-shaped, 0.5–1.5 mm, nectaries distinct or connate and cup-shaped;

filaments distinct, glabrous, or sparsely hairy on proximal 1/2;

anthers ellipsoid or globose, 0.3–0.5 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.

abaxial nectary rarely present, 0.7 mm, adaxial nectary narrowly oblong, ovoid, or flask-shaped, 0.5–2 mm, longer than stipe;

stipe 0–0.5 mm;

ovary pyriform, very densely villous or long-silky, beak slightly bulged below or abruptly tapering to styles;

ovules 8–20 per ovary;

styles connate to almost distinct, 0.2–0.8 mm;

stigmas slenderly to broadly cylindrical, 0.2–0.36–0.6 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.

staminate 12–42 × 4–14 mm, flowering branchlet 0–20 mm; pistillate densely flowered, slender, stout, or subglobose, 16–69 × 4–13 mm, flowering branchlet 4–30 mm;

floral bract tawny, brown, or black, 1.2–3.2 mm, apex rounded, entire, abaxially sparsely to moderately densely hairy, hairs wavy.