Flora of North America species comparison

erect or trailing;

branches yellow-brown or gray-brown, (sometimes weakly glaucous), glabrous;

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

(marcescent);

stipules absent;

petiole 1.5–5 mm;

largest medial blade usually amphistomatous, narrowly elliptic or elliptic, 9–26 × 3.8–7.5 mm, 2.4–4.3 times as long as wide, base cuneate, margins flat, entire, ciliate, apex acute, acuminate, or convex, abaxial surface glabrous or pilose, hairs wavy, adaxial slightly glossy, glabrous or pilose;

proximal blade margins entire;

juvenile blade glabrous or sparsely villous abaxially.

(marcescent), stipules absent or rudimentary on early ones, foliaceous on late ones, apex rounded, convex, or acute;

petiole (rarely with spherical glands distally), 4–16 mm, puberulent or pubescent to glabrescent adaxially;

largest medial blade lorate to narrowly lanceolate, 58–155 × 7–27 mm, 4.5–10.7 times as long as wide, base cuneate to convex, margins serrulate to crenulate or entire, apex acuminate to acute, abaxial surface glabrous or glabrescent, hairs appressed, adaxial dull or slightly glossy, glabrous or pilose;

proximal blade margins entire;

juvenile blade glabrous, puberulent, pilose, or sparsely long-silky abaxially, hairs white.

abaxial nectary (0–)0.2–0.6 mm, adaxial nectary oblong or square, 0.4–1.2 mm, nectaries distinct;

filaments distinct or basally connate;

anthers ellipsoid, 0.3–0.6 mm.

abaxial nectary 0.2–0.6 mm, adaxial nectary oblong, square, or ovate, 0.2–0.6 mm, nectaries distinct or connate and cup-shaped;

stamens 3–7;

filaments hairy basally;

anthers 0.3–0.5 mm.

adaxial nectary oblong or square, 0.5–1.2 mm, longer than stipe;

stipe 0–0.6 m;

ovary pyriform, usually densely villous, beak abruptly tapering to or slightly bulged below styles;

ovules 6–10 per ovary;

styles 0.3–1 mm;

stigmas slenderly cylindrical, 0.28–0.39–0.56 mm.

adaxial nectary square to oblong, 0.3–0.6 mm;

stipe 0.4–2.4 mm;

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

ovules 8–18 per ovary;

styles 0.2–0.3 mm;

stigmas (sometimes slenderly cylindrical), 0.18–0.27–0.32 mm.

3.5–5 mm.

3–6 mm.

staminate (20–50 flowers), 12.5–26.5 × 5.5–9 mm, flowering branchlet 1–11 mm; pistillate moderately densely to loosely flowered, (15–35(–43) flowers), stout or subglobose, 10–23(–30 in fruit) × 5–8 mm, flowering branchlet 2–9 mm;

floral bract brown, 1.6–2.6 mm, apex rounded, entire, abaxially sparsely hairy or ciliate, hairs wavy or straight.

(usually flowering throughout season and axillary, sessile), staminate 24–131 × 3–10 mm, flowering branchlet 0–12 mm; pistillate (densely to loosely flowered), 24–47 × 6–12 mm, flowering branchlet 0–10 mm;

floral bract 0.6–2.2 mm, apex rounded to convex, irregularly toothed or entire, abaxially sparsely to moderately densely hairy proximally, hairs irregularly curly; pistillate bract persistent after flowering.

= 38.