Flora of North America species comparison

erect, green to purple-green, apex never flexuous.

erect, purple-green, apex never flexuous.

petiole 0–2 mm;

blade usually oblanceolate to linear, sometime elliptic, 2–8(–10) × 0.2–1.4 cm, base acute, margins entire or irregularly and shallowly sinuate, apex acute.

petiole 1–4 mm;

blade orbiculate to elliptic, 2–5 × 0.8–3 cm, base acute, margins serrate to crenate, apex acute to blunt.

terminal (often appearing leaf opposed), glands absent, staminate flowers 3–45 per raceme; staminate bracts 1–1.5 mm.

terminal (often appearing leaf opposed), glands absent, staminate flowers 4–11 per raceme; staminate bracts 0.8–1.2 mm.

staminate 1.3–2 mm, persistent base 0.3–0.6 mm; pistillate 3.5–4 mm in fruit.

staminate 1.5–1.9 mm, persistent base 0.4–0.6 mm; pistillate 2.8–3.4 mm in fruit.

sepals 4–5, green, 1–1.5 mm;

stamens 2, filaments 0.2–0.4 mm.

sepals 4–5, green, 0.9–1.5 mm;

stamens 2, filaments 0.2–0.5 mm.

sepals linear, 1–1.8 mm;

styles connate 1/4–1/3 length;

stigmas undulate.

sepals lanceolate, 1.3–2.3 mm;

styles connate 1/4 length;

stigmas undulate.

7–8 mm wide.

9–13 mm wide.

brown with tan streaks, 3–4 mm.

dark brown with light brown streaks, 4–4.5 mm.

= 44.

= 44.