Flora of North America species comparison

unbranched or branched distally, 1.5–4(–6) dm, densely to moderately hirsute-hispidulous basally, trichomes simple, to 3.5 mm, mixed with fewer, branched ones, (glabrescent distally).

unbranched or branched distally, (1.2–)3–10(–13) dm, glabrous or sparsely pubescent basally, trichomes branched, rarely mixed with fewer, simple ones.

persistent after anthesis (into fruiting).

often withered by anthesis.

blade lanceolate to oblong, (1–)2–6(–9) cm × 2–10(–20) mm, base sagittate or minutely auriculate, margins entire or irregularly denticulate, (often subciliate), apex acute, surfaces pubescent, trichomes primarily simple.

blade lanceolate, narrowly oblong, or linear-lanceolate, (1–)2–7(–9) cm × 2–10(–15) mm, base sagittate or strongly auriculate, margins entire or, rarely, remotely denticulate, apex acute, surfaces glabrescent or sparsely pubescent, trichomes usually forked.

sepals (2.7–)3–4(–4.5) × 0.5–1 mm;

petals white or creamy white, (5–)6–8(–9) × 1.5–2 mm;

filaments 2–3.5 mm;

anthers ca. 0.5 mm.

sepals 2–3(–4) × 0.5–1 mm;

petals yellow, (3.5–)4–6 × 1–1.5 mm;

filaments 1.5–3 mm;

anthers ca. 0.5 mm.

ascending to divaricate, 7–10(–14) mm.

ascending, (8–)12–20(–27) mm.

pyriform to obovoid, 5–7 × 3.5–5 mm, apex acute;

valves each obscurely veined, margin narrowly winged;

style 2–3 mm.

pyriform or broadly obovoid, 7–9(–13) × 4–5(–6) mm (distinctly longer than wide), apex often subtruncate;

valves each with prominent midvein, margin narrowly winged;

style 1.2–2.5 mm.

brown, 1.2–1.5 × 0.5–0.6 mm.

dark brown, (1.5–)1.8–2.5 × 0.7–1 mm.

= 12, 26.

= 40.