Flora of North America species comparison

absent.

(tuberiform, fragile), moniliform, segments oblong, 3–5 mm diam., (fleshy).

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

erect, unbranched, 1–3.5 dm.

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

palmately compound (biternate), 7–20 cm, leaflets petiolulate;

petiole 4–13 cm;

lateral leaflets similar to terminal, blade sometimes smaller;

terminal leaflet (petiolule 1–3(–4) cm), blade ternately or pinnately lobed, (distal segment) linear, 0.7–3.5 cm × 0.6–3 mm, base attenuate to cuneate, margins entire (apiculate).

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.

(2 or) 3, palmately compound (biternate, similar to rhizomal leaves, alternate to subopposite), petiolate, leaflets petiolulate;

petiole (0.5–)1–4(–5.5) cm, base not auriculate;

lateral leaflets similar to terminal;

terminal leaflet (petiolule (0.3–)0.7–1.5(–2.5) cm), blade (ternate, distal segment) linear, (0.4–)1.5–5(–6.5) cm × 0.7–4(–6) mm, base cuneate to attenuate, margins entire.

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, 4–6 × 1.5–2 mm, lateral pair not saccate basally;

petals white to pale pink, oblanceolate, 9–15 × 2–4 mm, (not clawed, apex rounded);

filaments: median pairs 6–7.5 mm, lateral pair 3–5 mm;

anthers linear, 1.5–2.5 mm.

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

ascending to divaricate, 10–25(–35) 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-lanceolate, 2–3.5 cm × 1.5–2 mm;

ovules 10–14 per ovary;

style 4–7(–10) mm.

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

brown, oblong, 1.5–2.5 × 1–1.5 mm.

= 16.

= 64, 112.