Flora of North America species comparison

loosely branched distally, stellate-hairy.

usually well branched distally, lepidote.

not clustered;

stipules absent;

petiole 0.3–2 cm, glands absent at apex;

blade narrowly ovate-oblong to linear-lanceolate, 1–5 × 0.5–2 cm, base truncate to rounded or subcordate, margins entire, apex rounded to acute, abaxial surface pale green, densely whitish appressed stellate-hairy, adaxial surface darker green, less hairy.

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.

unisexual;

staminate racemes or irregularly branched panicles, 2–8 cm, flowers 10–30;

pistillate racemes, 1–2 cm, flowers 1–6.

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

staminate 2–3 mm, pistillate 1–3 mm.

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

sepals 5, 1–2 mm, abaxial surface densely whitish appressed stellate-hairy;

petals 0;

stamens 8–12.

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, equal, 1–1.5 mm, margins entire, apex incurved, abaxial surface densely stipitate-stellate-hairy;

petals 0;

ovary 3-locular;

styles 3, 1–2 mm, multifid, terminal segments 12–32+.

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).

5–8 × 4–5.5 mm, verrucose;

columella 3-winged.

1.6–2.5 × 2–3 mm, smooth;

columella 3-angled.

3.5–4 × 2.5–3 mm, shiny.

6.7–8 × 5.2–6 mm, shiny.

= 28.