Flora of North America species comparison

absent.

cylindrical, slender, to 2 mm diam.

erect, (angled, sometimes flexuous), unbranched basally, usually branched distally, (1.2–)2–6.5(–9) dm.

erect, unbranched, 1.5–5 dm, glabrous or sparsely hirsute basally.

(often withered by flowering), rosulate, similar to cauline, with fewer distal leaflets.

absent.

9–24, (9–)13–25-foliolate, petiolate, leaflets petiolulate;

petiole 2–6 cm, base auriculate (auricles to 10 × 2.2 mm);

lateral leaflets similar to terminal, blade often smaller;

terminal leaflet (petiolule to 0.5 cm), blade orbicular, obovate, ovate, or lanceolate, 1–4(–5) cm × 5–17 mm, margins entire or 3–5(–9)-toothed or -lobed.

4–7, simple, (crowded distally), petiolate;

petiole (0.5–)1–4(–5) cm, base not auriculate;

blade usually broadly ovate or ovate-lanceolate to ovate-elliptic, rarely obovate, 5–13 cm × 20–65 mm, base cuneate, margins coarsely serrate (with apiculae), or repand to undulate (margins minutely pubescent, apex acute).

ebracteate.

ebracteate.

sepals oblong, 1.2–2(–2.5) × 0.7–1(–1.2) mm, lateral pair not saccate basally;

petals (rarely absent), white, oblanceolate, 1.5–4(–5) × 0.6–1.2 mm;

filaments 2–3(–4) mm;

anthers ovate, 0.3–0.5 mm.

sepals oblong, 6–8 × 2–2.5 mm, lateral pair slightly saccate basally;

petals pink, oblanceolate, 15–28 × 5–8 mm, (claw to 10 mm, apex rounded);

filaments: median pairs 8–10 mm, lateral pair 4–6 mm;

anthers linear, 2–3 mm.

divaricate or ascending, 3.5–12(–15) mm.

divaricate-ascending to suberect, 10–22 mm.

linear, (torulose), (1–)1.6–3(–3.5) cm × 0.9–1.5 mm; (valves glabrous or, rarely, pilose);

ovules 10–30 per ovary;

style 0.6–1.6(–2) mm.

linear, 2.5–3.5(–5) cm × 1.9–2.1 mm;

ovules 12–16 per ovary;

style 2–3.5 mm.

brown, oblong, 1.1–1.5 × 0.8–1 mm, (compressed, sometimes narrowly winged apically).

brown, oblong, 2–2.5 × 1.2–1.5 mm.

= 16.