Flora of North America species comparison

usually well branched distally, lepidote.

loosely branched, stellate-lepidote.

clustered at branch tips;

stipules absent;

petiole 0.6–2 cm, glands absent at apex;

blade elliptic, ovate, or oblong, 3–10 × 1.5–5 cm, base rounded to obtuse, margins entire, sometimes ± undulate, apex acute, rounded, or emarginate, abaxial surface silvery or coppery, densely lepidote, adaxial surface green, sparsely lepidote.

not clustered;

stipules absent;

petiole 1–3.5(–4.5) cm, usually less than 1/2 blade length, glands absent at apex;

blade elliptic to narrowly oblong, 2–5.5(–7) × 0.8–2(–2.5) cm, usually more than 2 times as long as wide, base obtuse, margins entire, apex obtuse to rounded, abaxial surface light green, adaxial surface darker green, both stellate-lepidote.

bisexual or unisexual, racemes, 2–4.5 cm, staminate flowers 0–15, pistillate flowers 0–10.

unisexual, racemes or thyrses;

staminate 0.5–3.5(–10) cm, flowers 3–8(–20);

pistillate 0.5–1 cm, flowers 1–6.

staminate 2.2–4 mm, pistillate 2.2–7.5 mm (7–11 mm in fruit).

staminate 1–5.5(–7) mm, pistillate to 1 mm (1–3 mm in fruit).

sepals 5, 1.1–2.9 mm, abaxial surface lepidote;

petals 5, oblong-ovate, 2–3.1 mm, abaxial surface glabrous except margins stellate-ciliate;

stamens 10–22.

sepals 5, 1 mm, abaxial surface stellate-lepidote;

petals 0;

stamens 10–15.

sepals 5, equal, 2–4.5 mm, margins entire, apex incurved, abaxial surface lepidote;

petals 5, pale green, ovate, 2–3.5 mm;

ovary 3-locular;

styles 3, 2–5 mm, usually unbranched, rarely 2-fid, terminal segments 3 (or 6).

sepals 5, equal, 2 mm, margins entire, apex incurved, abaxial surface stellate-lepidote;

petals 0;

ovary 3-locular;

styles 3, 2–2.5 mm, 4-fid, terminal segments usually 12.

1.6–2.5 × 2–3 mm, smooth;

columella 3-angled.

6–8 × 5–7 mm, smooth;

columella 3-winged.

6.7–8 × 5.2–6 mm, shiny.

4–5.5 × 3.5–5.5 mm, dull.

= 28.