Flora of North America species comparison

erect to trailing, gray-green, apex often flexuous.

erect to decumbent, dark green, apex never flexuous.

petiole 4–20(–30) mm;

blade usually triangular to subhastate, sometimes ovate, 1–4.5 × 0.8–3 cm, base cordate, hastate, or truncate, margins crenate to serrate, apex acute to obtuse.

usually 3-foliolate, sometimes 3-lobed nearly to base;

petiole 7–18 mm;

leaflets: blade lanceolate, base acute, margins deeply and coarsely serrate, sinuses often extending 1/2+ to midvein, apex acute, central one 2.5–4 × 1–2 cm, lateral ones often with basal lobe.

terminal or axillary, glands absent, staminate flowers 5–16 per raceme;

staminate bracts 0.9–2 mm.

terminal (often appearing leaf opposed), glands absent, staminate flowers 10–20 per raceme;

staminate bracts 0.5–1.5 mm.

staminate 0.7–1.2 mm, persistent base 0.2–0.8 mm;

pistillate 1.5–4 mm in fruit.

staminate 0.8–1.6 mm, persistent base 0.3–0.7 mm;

pistillate 2.5–3 mm in fruit.

sepals 3–4, green, 0.9–1.2 mm;

stamens 3–4, filaments 0.2–0.7 mm.

sepals 3–4, green, 1–1.4 mm;

stamens 3, filaments 3.5–4 mm.

sepals lanceolate, 1–2.5 mm;

styles connate to 1/3 length, short-exserted;

stigmas undulate to subpapillate.

sepals lanceolate, 2–3 mm;

styles connate 1/4–1/2 length;

stigmas undulate to subpapillate.

7–8 mm wide.

6–7 mm wide.

brown with tan mottling, 2.5–3.5 mm.

dark brown, 3–3.2 mm.

= 110.