Flora of North America species comparison

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

erect, purple-green, apex never flexuous.

petiole 1–5 mm;

blade oblong to oblanceolate, 3–7 × 1–2.8 cm, base acute to obtuse, margins coarsely serrate, teeth apices often somewhat recurved, 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 (appearing leaf opposed), glands absent, staminate flowers 2–5 per raceme;

staminate bracts 1–2 mm.

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

staminate bracts 0.8–1.2 mm.

staminate 1.3–1.6 mm, persistent base 0.2–0.4 mm;

pistillate 2–3 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 3–4, green, 1.5–2.5 mm;

stamens 4–5, filaments 0.7–1.3 mm, connate 1/2 length.

sepals 4–5, green, 0.9–1.5 mm;

stamens 2, filaments 0.2–0.5 mm.

sepals rhombic-lanceolate, 1–4 mm;

styles connate 1/4 length;

stigmas undulate.

sepals lanceolate, 1.3–2.3 mm;

styles connate 1/4 length;

stigmas undulate.

6–7 mm wide.

9–13 mm wide.

dark brown, 2.5–3.2 mm.

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

= 44.