Flora of North America species comparison

main stems persistent, terete, not winged, glabrous or scabridulous; ultimate branchlets deciduous, subterete, not winged, glabrous or scabridulous.

main stems angled, not winged, glabrous; ultimate branchlets subterete, narrowly winged, ± scabridulous.

on main stems spiral, scalelike;

stipules not auriculate, pale reddish brown.;

leaves on ultimate branchlets distichous, well developed;

stipules not auriculate, greenish white;

blade elliptic to oblong, 3–10 × 1–4 mm, base cuneate to subcordate, apex obtuse to emarginate, both surfaces glabrous or scabridulous.

on main stems spiral, scalelike;

stipules not auriculate, pale green to nearly white.;

leaves on ultimate branchlets distichous, well developed;

stipules not auriculate, pale green to nearly white;

blade elliptic-oblong, 6–11 × 3–5 mm, base cuneate to obtuse, apex rounded, both surfaces glabrous.

cymules, proximal staminate with 2 flowers, distal bisexual with 1 pistillate flower and 1–3 staminate flowers.

cymules or flowers solitary, unisexual, proximal with 2–3 staminate flowers, distal with 1 pistillate flower.

staminate 0.7–1.5 mm, pistillate spreading in fruit, (1–)1.5–3(–3.5) mm.

staminate 0.2–0.5 mm, pistillate spreading in fruit, 1.3–2 mm.

sepals 5–6 in basal cymules, 4 in distal cymules, pale yellowish green, sometimes suffused with red, flat, 0.5–1 mm;

nectary extrastaminal, 4(–6) glands;

stamens 2(–3 in basal cymules), filaments connate throughout.

sepals 6, white to pale yellow, flat, 0.4–0.7 mm;

nectary extrastaminal, 6 glands;

stamens 3, filaments connate throughout.

sepals 5–6, green with nearly white margins, flat, (0.5–)0.7–1.1 mm, 1-veined;

nectary 3 glands (2-fid distally, thus resembling 6 glands).

sepals 6, green with broad white margins, flat, (1–)1.2–1.5 mm, 1-veined;

nectary annular, 6–9-lobed.

2.3–2.7 mm diam., smooth.

2.1 mm diam., smooth.

uniformly brown, 1.1–1.5 mm, longitudinally ribbed.

uniformly brown, 0.9–1.1 mm, longitudinally ribbed.