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 and ultimate branchlets terete, not winged, usually glabrous, rarely 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 auriculate, dark brown.;

leaves on ultimate branchlets distichous, well developed;

stipules not auriculate, pale brown to brown;

blade elliptic or obovate to suborbiculate, 2–8 × 1–5 mm, base acute to rounded, apex obtuse to rounded and apiculate, both surfaces glabrous or abaxial scabridulous.

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

cymules or flowers solitary, unisexual, staminate distributed along branchlet, with (10–)15–20 flowers, pistillate distributed along branchlet or distal, with 1 flower.

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

staminate 0.3–0.8 mm, pistillate spreading in fruit, (1–)1.2–1.8(–2.1) 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 5, pale yellow to white, flat, 0.7–0.8 mm;

nectary extrastaminal, 5 glands;

stamens 2, filaments connate 2/3 length.

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 5, green with broad white margins, flat, (0.7–)0.9–1.2 mm, obscurely veined;

nectary annular, 5-lobed.

2.3–2.7 mm diam., smooth.

1.7–1.9 mm diam., smooth.

uniformly brown, 1.1–1.5 mm, longitudinally ribbed.

uniformly brown, 0.8–0.9 mm, longitudinally ribbed.

= 52.