Flora of North America species comparison

(0.2–)1–5(–7) dm.

petiole 0.5–4(–6) cm;

blade oblong or oblanceolate, (0.5–)1.5–10(–15) cm × 2–25(–50) mm, base cuneate or attenuate, apex acute or acuminate.

blade narrowly oblong, lanceolate, or linear, 1–5.5(–8) cm × 1–15(–20) mm, base sagittate, amplexicaul, or, rarely, auriculate.

sepals green or reddish, 1.5–2 × 0.7–1 mm (margins membranous);

petals (1.5–)2–4(–5) × 1–1.5 mm;

filaments 1–2 mm;

anthers to 0.5 mm.

usually straight, (0.3–)0.5–1.5(–2) cm, glabrous.

(0.3–)0.4–0.9(–1) cm × (2–)3–7(–9) mm, base cuneate, apex emarginate or truncate;

valves each with subparallel lateral veins;

style 0.2–0.7 mm.

brown, 0.9–1.1 × 0.4–0.6 mm.

= 32.