Flora of North America species comparison

branches (sometimes ± brittle at base), yellow-brown or olive-brown, not or weakly glaucous, glabrous;

branchlets yellow-brown or olive-brown, violet tinged, glabrous.

stipules (sometimes marcescent), foliaceous, (resinous, 1.5–7.5 mm), apex acute;

petiole shallowly grooved, or convex to flat adaxially, 4–15 mm, villous or puberulent adaxially, (weakly ventricose around floral buds);

largest medial blade narrowly to broadly elliptic, oblanceolate, or obovate, 35–95 × 10–29 mm, 2.2–4.2(–5) times as long as wide, base usually convex, rounded, or cuneate, sometimes cordate, margins flat, entire, apex acute, convex, or acuminate, abaxial surface not glaucous, moderately to very densely long-silky tomentose to glabrescent, hairs wavy, adaxial slightly glossy, sparsely villous or pubescent to glabrescent;

proximal blade margins entire;

juvenile blade color sometimes obscured by hairs, very densely long-silky abaxially, hairs white.

(sometimes opposite or subopposite);

stipules absent;

petiole shallowly grooved adaxially, 2–7 mm, glabrous adaxially;

largest medial blade lorate, narrowly oblong, narrowly oblanceolate, oblanceolate, 35–77 × 5–20 mm, base convex or rounded, margins strongly revolute, entire or serrulate, apex acute, acuminate, or convex, abaxial surface glaucous, glabrous, adaxial dull to sublustrous, glabrous;

proximal blade margins entire;

juvenile blade yellowish green or reddish, glabrous or sparsely pubescent abaxially, hairs white, sometimes also ferruginous.

adaxial nectary narrowly oblong to oblong, 0.4–1.8 mm;

filaments distinct;

anthers yellow or purple turning yellow, ellipsoid or shortly cylindrical, 0.4–0.6 mm.

adaxial nectary oblong, square, or ovate, 0.4–0.8 mm;

filaments connate;

anthers (distinct), purple turning yellow, ellipsoid or globose, 0.4–0.5 mm.

adaxial nectary narrowly oblong to oblong, 0.6–1.3 mm;

stipe 0.2–0.6 mm;

ovary pyriform, (hairs refractive), beak gradually tapering to styles;

ovules 16–21 per ovary;

styles 0.6–1.8 mm;

stigmas 0.28–0.47–0.64 mm.

adaxial nectary ovate, 0.3–0.7 mm;

ovary obturbinate, beak gradually tapering to styles;

ovules 6 per ovary;

styles 0.2–0.3 mm.

4.5–6 mm.

2.5–5 mm.

flowering before leaves emerge; staminate stout or subglobose, 20–57 × 13–18 mm, flowering branchlet 0–2 mm; pistillate densely flowered, slender to stout, 28–92(–105 in fruit) × 12–19 mm, flowering branchlet 0–5 mm;

floral bract brown or black, 2.8–5.2 mm, apex acute to convex, abaxially hairy, hairs straight.

flowering before leaves emerge, (subopposite, recurved); staminate stout or subglobose, 25–33 × 6–10 mm, flowering branchlet 0 mm; pistillate densely flowered, slender or stout, 13.5–34.5(–35 in fruit) × 3–7 mm, flowering branchlet 0.5–3 mm;

floral bract black or bicolor, 0.8–1.6 mm, apex rounded, abaxially hairy, hairs straight or wavy.

= 38.