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 usually absent or rudimentary, sometimes foliaceous on early ones (apex acute), rudimentary or foliaceous on late ones;

petiole 2–5 mm, short-silky adaxially;

largest medial blade (sometimes hypostomatous, glands marginal), linear or very narrowly elliptic, 58–115 × 5–17 mm, 5.7–12.8 times as long as wide, base acute or cuneate, margins flat to slightly revolute, remotely spinulose-serrulate or sinuate, apex acuminate, abaxial surface glaucous (sometimes obscured by hairs), sparsely to very densely short- or long-silky, hairs appressed to slightly spreading, straight, adaxial dull, pubescent or long-silky;

proximal blade margins entire or remotely denticulate;

juvenile blade color obscured by hairs, densely short-silky 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 0.3–0.9 mm, adaxial nectary narrowly oblong, oblong, ovate, or flask-shaped, 0.5–1 mm, nectaries distinct or connate and shallowly cup-shaped;

filaments hairy on proximal 1/2, throughout, or basally;

anthers 0.8–1.3 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.

(abaxial nectary 0.3–0.4 mm), adaxial nectary narrowly oblong, ovate, or flask-shaped, 0.4–1.3 mm, longer than stipe, nectaries distinct or connate and shallowly or partially cup-shaped;

stipe 0.2–0.7 mm;

ovary pyriform, long-silky, beak abruptly tapering to styles;

ovules 18–30 per ovary;

styles 0.1–0.2(–0.4) mm;

stigmas flat, abaxially non-papillate with rounded tip, or broadly cylindrical, (0.3–)0.5–1.1 mm.

3.2–8 mm.

3.4–5.6 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 20–83 × 5–13 mm, flowering branchlet 6–125(–200) mm; pistillate densely to moderately densely flowered, slender or stout, 35–90 × 5–12 mm, flowering branchlet 11–160 mm;

floral bract 1.4–4 mm, apex acute, rounded, retuse, or truncate, entire or toothed, abaxially hairy throughout or proximally, hairs straight or wavy.

= 38.

= 38.