Flora of North America species comparison

stipules foliaceous, apex acute to acuminate;

petiole convex to flat, or shallowly grooved adaxially, 2–6(–9) mm, pilose or villous adaxially;

largest medial blade narrowly to broadly elliptic or narrowly ovate to ovate, 25–92 × 10–45 mm, 1.5–2.6(–3.4) times as long as wide, base convex, cuneate, or rounded, margins slightly revolute or flat, shallowly serrulate or entire, apex acuminate, acute, or convex, abaxial surface glaucous, sparsely pubescent, hairs wavy, adaxial dull to slightly glossy, pilose, sparsely pubescent or glabrous, midrib hairy, (hairs white and ferruginous);

proximal blade margins entire or finely serrulate;

juvenile blade sometimes reddish, sparsely pubescent abaxially, hairs white, sometimes also ferruginous.

stipules absent or rudimentary;

petiole shallowly to deeply grooved adaxially, 3–13 mm, with pairs of spherical glands distally or throughout, glabrous adaxially;

largest medial blade hypostomatous or hemiamphistomatous, narrowly oblong, very narrowly elliptic, elliptic, lanceolate, or narrowly ovate, 43–110 × 9–33 mm, 2.4–6 times as long as wide, base convex or cuneate, margins flat, serrulate, apex acuminate, caudate, or acute, abaxial surface usually not glaucous, sometimes thinly so (appearing pale green), slightly glossy, glabrous, adaxial highly glossy, glabrous;

proximal blade margins serrulate or entire;

juvenile blade reddish or yellowish green, glabrous abaxially.

adaxial nectary oblong or square, 0.3–0.7 mm;

filaments distinct or basally connate, glabrous;

anthers purple turning yellow, 0.4–0.6 mm.

abaxial nectary 0.5–1.1 mm, adaxial nectary oblong or ovate, 0.4–1.1 mm, nectaries distinct or connate and cup-shaped;

stamens 3–9;

filaments distinct or basally connate, hairy on proximal 1/2 or basally;

anthers ellipsoid or shortly cylindrical, 0.5–0.7 mm.

adaxial nectary square or obovate, 0.3–0.6 mm, usually shorter than stipe;

stipe 0.4–1.2 mm;

ovary pyriform, glabrous, beak gradually tapering to styles;

ovules 12–22 per ovary;

styles connate (sometimes distinct 1/2 their lengths), 0.2–0.5 mm;

stigmas flat, abaxially non-papillate with rounded tip, or broadly cylindrical, or 2 plump lobes, 0.2–0.32–0.44 mm.

adaxial nectary ovate, oblong, or flask-shaped, 0.3–1.1 mm, shorter than stipe;

stipe 1.2–2.4 mm;

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

ovules 12–16 per ovary;

styles connate, 0.3–1 mm;

stigmas flat, abaxially non-papillate with rounded tip, or slenderly cylindrical, 0.4–0.7 mm.

3.2–8 mm.

7–12 mm.

flowering as leaves emerge; staminate slender, stout, or subglobose, 14.5–34.5 × 8–12 mm, flowering branchlet 1–7 mm; pistillate moderately densely or loosely flowered, slender or stout, 21–59 × 6–16 mm, flowering branchlet 1.5–9 mm;

floral bract brown or bicolor, 1.2–1.8 mm, apex acute to rounded, abaxially glabrate to hairy, hairs straight to wavy.

staminate (stout), 25–53 × 12–16 mm, flowering branchlet 5–14 mm; pistillate (fruiting in autumn, often persistent) moderately densely to loosely flowered, stout to globose, 17–42(–65 in fruit) × 11–22 mm, flowering branchlet 5–32(–65 in fruit) mm;

floral bract (sometimes greenish tawny), 1.2–4 mm, apex acute, rounded, or truncate, glandular-toothed, abaxially moderately densely hairy, hairs straight or wavy.

= 38.

= 76.