Flora of North America species comparison

absent.

(tuberiform, fragile), ovoid or globose at base of stem, 3–10 mm diam., (fleshy).

erect, unbranched or, rarely, branched, 0.5–1.6(–3.5) dm.

(simple from base), erect to ascending, (not flexuous), unbranched or branched distally, 1–5 dm, glabrous or pubescent proximally.

(7 or) 9–21-foliolate, (thick, veins impressed);

leaflets petiolulate or sessile;

lateral lobes or leaflets similar to terminal;

terminal lobe or leaflet blade orbicular, broadly ovate to lanceolate, base rounded to cuneate, margins usually entire.

not rosulate, pinnately compound, (3 or) 5 (or 7)-foliolate, 2–10 cm, leaflets petiolulate or subsessile;

petiole 0.5–6.5 cm;

lateral leaflets petiolulate or subsessile, blade similar to terminal, ovate, smaller, margins entire;

terminal leaflet (petiolule 0.03–0.18 cm), blade orbicular to broadly ovate or subcordate, 0.5–2 cm × 7–25 mm, base cordate to rounded, margins entire or repand, (surfaces glabrous).

2–4(–7), pinnatisect or pinnately compound, (7 or) 9–21-foliolate, (thick, veins impressed), petiolate, leaflets petiolulate or sessile;

petiole base not auriculate;

lobes or leaflets (of proximal leaves) (4–)7–10 each side of rachis, fewer distally, distal leaves with 4 or 5 lobes or leaflets each side of rachis;

terminal leaflet petiolulate or sessile, blade (or lobe) narrowly lanceolate to lanceolate, base cuneate, margins entire.

3–7, (3 or) 5 or 7-foliolate (middle ones 5 or 7-foliolate, smaller distally, becoming 3-foliolate), petiolate;

petiole 0.5–3 cm, base not auriculate;

lateral leaflets similar to terminal, smaller;

terminal leaflet blade obovate to oblanceolate, 0.5–2.6 cm × 3–13 mm, margins shallowly toothed, entire, or repand.

ebracteate.

ebracteate.

sepals oblong or ovate, 3.6–4.4 mm, lateral pair saccate basally, (green with hyaline margins);

petals white-lilac, 9–12.3 × 4.8–6.8 mm, (clawed, apex rounded or emarginate);

filaments: median pairs 3.5–4.5 mm, lateral pair 2–3 mm;

anthers narrowly oblong, 0.9–1.4 mm.

sepals oblong, 1.7–2 × 1–1.2 mm, lateral pair not saccate basally;

petals white, oblanceolate, 4–6 × 1.5–2 mm, (not clawed);

filaments: median pairs 2–2.5 mm, lateral pair 1–1.5 mm;

anthers ovate, 0.3–0.5 mm.

erect-ascending, 5–15 mm.

divaricate-ascending, 7–18 mm.

linear, 1–1.8 cm × ca. 1.5 mm;

ovules ca. 16 per ovary;

style ca. 1 mm, (stout).

linear, (torulose), 1.5–3.3 cm × 1.7–2.2 mm; (valves glabrous or sparsely pubescent);

ovules 18–40 per ovary;

style 0.5–1.5 mm.

brown, oblong, ca. 1.5 mm.

brown, ovoid, 1–1.6 × 1–1.2 mm.

= 56, 60, 64, 80–100.

= 64.