Flora of North America species comparison

di- or trichotomously branched, stellate-hairy, young stems often blackened by fungus.

sparsely branched distally, sparsely stellate-hairy.

not clustered;

stipules rudimentary;

petiole 1–1.5 cm, 1/6–1/3 leaf blade length, glands absent at apex;

blade narrowly obovate, oblong, elliptic, or lanceolate, 3–10 × 1–5 cm, mostly less than 3.5 times as long as wide, base subacute to rounded, margins minutely denticulate, apex acute or acuminate, abaxial surface light green, densely ochraceous stellate-hispid when young, pale stellate-hairy when mature, adaxial surface darker green, glabrous.

not clustered;

stipules linear, (0–)1–2 mm, sometimes short stipitate-glandular;

petiole 1–2 cm, 2/5–1/2 leaf blade length, glands absent at apex;

blade ovate, 2–5 × 1.5–2.5 cm, base rounded-cuneate, margins entire, with scattered glandular-capitate processes 1 mm, usually denser at base, apex acute to acuminate, abaxial surface green, glabrous or sparsely stellate-hairy, usually along margin, adaxial surface slightly darker green, glabrous.

unisexual, racemes;

staminate 7–20 cm, flowers 10–30;

pistillate 1–5 cm, flowers 8–20(–30).

bisexual, racemes, 2–4 cm, staminate flowers 10–30, pistillate flowers 3–6.

staminate 0–1 mm, pistillate 0–0.5 mm.

staminate 1–5 mm, pistillate 2–5 mm.

sepals 5, 2.5 mm, abaxial surface stellate-hairy;

petals 5, oblong, 3 mm, abaxial surface glabrous except margins ciliate basally;

stamens 12–16.

sepals 5, 0.8–1 mm, abaxial surface sparsely stellate-hairy;

petals 5, spatulate, 1–1.3 mm, abaxial surface glabrous except margins ciliate basally;

stamens 15–20.

sepals 5, equal, 1–1.5 mm, margins entire, apex straight to slightly incurved, abaxial surface stellate-hispid;

petals rudimentary;

ovary 3-locular;

styles 3, 4–5 mm, 2-fid, terminal segments 6.

sepals 5, unequal, 5–6 mm, margins entire, apex straight to slightly incurved, abaxial surface glabrous or with a few stellate hairs;

petals 0 or 5, white, linear, 2.5–3.5 mm;

ovary 3-locular;

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

5–6 × 4.5–5.5 mm, smooth;

columella apex with 3 rounded, inflated lobes.

6 × 5–6 mm, smooth;

columella apex with 3 rounded, inflated lobes.

4–5 × 3–3.5 mm, shiny (with silvery sheen).

4–5 × 3–4 mm, shiny.

= 20.