Flora of North America species comparison

erect;

branches gray-brown, hairy;

branchlets red-brown, sparsely or moderately densely pubescent, (buds alba-type).

stipules rudimentary or foliaceous on early ones, foliaceous on late ones, apex acute or rounded;

petiole convex to flat adaxially, 4–15 mm, tomentose adaxially;

largest medial blade elliptic, broadly elliptic, oblanceolate, or obovate, 65–105 × 22–52 mm, 2–3 times as long as wide, base convex or cuneate, margins slightly revolute, entire, crenate, or sinuate, (glands submarginal), apex acuminate or convex, abaxial surface glaucous, tomentose, hairs erect or spreading, curly, adaxial dull or slightly glossy, pubescent or tomentose;

proximal blade margins entire;

juvenile blade yellowish green, sparsely to densely tomentose abaxially, hairs white.

stipules absent or rudimentary on early ones, usually rudimentary, rarely foliaceous, on late ones;

petiole (shallowly grooved adaxially), 3–10 mm, (puberulent or villous);

largest medial blade oblong, narrowly elliptic, elliptic, oblanceolate, or obovate, 17–50 × 8–18 mm, 1.9–3.2 times as long as wide, base cuneate or convex, margins flat or slightly revolute, entire, apex acuminate or convex, abaxial surface glabrescent or sparsely silky, hairs appressed or somewhat spreading, (usually white, sometimes also ferruginous), straight or wavy, adaxial dull or slightly glossy, glabrous, glabrescent, pilose, or sparsely long-silky along midribs and margin, (hairs usually white, sometimes also ferruginous, appressed);

proximal blade margins entire;

juvenile blade sparsely to moderately densely villous or long-silky abaxially (hairs usually white, sometimes also ferruginous).

adaxial nectary oblong or ovate, 0.5–1 mm;

filaments distinct, glabrous or hairy basally;

anthers yellow or purple turning yellow, ellipsoid or shortly cylindrical, 0.7–1 mm.

abaxial nectary (0–)0.3–0.6 mm, adaxial nectary oblong or ovate, 0.4–1.2 mm, nectaries distinct;

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

anthers globose, 0.4–0.6 mm.

adaxial nectary oblong or square, 0.4–1 mm, shorter than stipe;

stipe 1.2–2.7 mm;

ovary pyriform, long-silky, beak slightly bulged below styles;

ovules 12 per ovary;

styles 0.2–0.5 mm;

stigmas slenderly or broadly cylindrical, 0.3–0.6 mm.

abaxial nectary absent, adaxial nectary oblong, 0.4–1.3 mm, shorter than stipe;

stipe 0.8–1.3 mm;

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

ovules 6–14 per ovary;

styles 0.5–1 mm;

stigmas flat, abaxially non-papillate with rounded tip, or broadly to slenderly cylindrical, 0.28–0.35–0.48 mm.

5–5.6 mm.

5.6–7.2 mm.

flowering before leaves emerge; staminate stout or subglobose, 26–39 × 12–26 mm, flowering branchlet 0–5 mm; pistillate densely flowered, stout or subglobose, 27–54(–75 in fruit) × 4–15 mm, flowering branchlet 1–5(–10) mm;

floral bract dark brown, black, or bicolor, 2–3 mm, apex acute or convex, abaxially hairy, hairs straight.

staminate 14–31 × 8–18 mm, flowering branchlet 1.5–9 mm; pistillate loosely flowered, stout to globose, 10–58 × 7–25 mm, flowering branchlet 3.5–26 mm;

floral bract tawny, 1–1.6 mm, apex rounded, entire, abaxially sparsely hairy, almost glabrous, hairs wavy.

= 76.

= 76, 95, 114.