Flora of North America species comparison

erect, purple-green, apex never flexuous.

erect, green, apex flexuous.

petiole 1–4 mm;

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

petiole 5–13 mm;

blade suborbiculate to ovate, 1.2–3 × 1–2.3 cm, base subcordate, margins dentate to serrate, apex acute.

terminal (often appearing leaf opposed), glands absent, staminate flowers 4–11 per raceme;

staminate bracts 0.8–1.2 mm.

terminal (often appearing leaf opposed), glands absent, staminate flowers 12–20 per raceme;

staminate bracts 0.8–1.2 mm.

staminate 1.5–1.9 mm, persistent base 0.4–0.6 mm;

pistillate 2.8–3.4 mm in fruit.

staminate 1.5–1.9 mm, persistent base 0.5–0.7 mm;

pistillate 3.2–3.7 mm in fruit.

sepals 4–5, green, 0.9–1.5 mm;

stamens 2, filaments 0.2–0.5 mm.

sepals 3–4, green, 1–1.5 mm;

stamens 3–4, filaments 0.4–0.6 mm.

sepals lanceolate, 1.3–2.3 mm;

styles connate 1/4 length;

stigmas undulate.

sepals lanceolate, 1.5–3 mm;

styles connate 1/4–1/3 length;

stigmas undulate.

9–13 mm wide.

6–7 mm wide.

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

dark brown with light brown streaks, 2.4–3 mm.

= 44.