Flora of North America species comparison

stipules absent or rudimentary;

petiole (shallowly to deeply grooved adaxially), 2–8 mm, (with 2 spherical glands distally, dark brown, sometimes basilaminar, sparsely pubescent or glabrous adaxially);

largest medial blade hypostomatous, (veins strongly impressed-reticulate), broadly elliptic, subcircular, or obovate, 18–67 × 10–40 mm, 1.1–2.3 times as long as wide, base rounded, convex, or subcordate, margins strongly revolute, crenate or subentire, apex rounded, convex, retuse, or toothed, abaxial surface sparsely to densely villous or long-silky, veins often with long, straight hairs, adaxial slightly glossy, glabrous or sparsely long-silky;

proximal blade margins entire or crenate;

juvenile blade (yellowish green), abaxially very densely long-silky.

abaxial nectary 0.6–0.8 mm, adaxial nectary narrowly oblong, 0.5–1.2 mm, nectaries connate and shallowly cup-shaped, or distinct;

filaments distinct, hairy on proximal 1/2;

anthers ellipsoid or globose, 0.3–0.5 mm.

abaxial nectary (0–)0.8–0.9 mm, adaxial nectary oblong, ovate, or narrowly oblong to almost filiform, 0.7–1.4 mm, shorter to longer than stipe, nectaries distinct or connate and cup-shaped;

stipe 0.4–1.2 mm;

ovary pyriform or obnapiform, densely short-silky, hairs cylindrical, beak abruptly tapering to styles;

ovules 13–15 per ovary;

styles connate 1/2 their lengths to almost distinct, 0.2–0.4 mm;

stigmas flat, abaxially non-papillate with rounded tip, slenderly cylindrical, or 2 plump lobes, 0.2–0.28–0.36 mm.

3–5 mm.

staminate 13–48 × 4–6.5(–8) mm, flowering branchlet 3–31(–50) mm; pistillate densely flowered, slender or stout, 18–56 × 4–10 mm, flowering branchlet 3–27(–40) mm;

floral bract tawny, 0.8–1.6 mm, apex rounded, entire, abaxially densely hairy, hairs straight.

= 38.