Flora of North America species comparison

(tuberous at stem base, sometimes also at intervals) subglobose, lobed, 4–15 mm diam. (fleshy).

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

erect, unbranched, (1–)2–6 dm, glabrous or sparsely pubescent on distal 1/2 (trichomes 0.02–0.1 mm).

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

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).

simple, (2–)4–13(–16) cm;

petiole (1.5–)2.5–10(–13) cm;

blade usually reniform to cordate or ovate, rarely oblong, (1–)2–4(–6) cm, base obtuse to cordate, margins usually repand or entire, rarely shallowly dentate.

(2–)4–10(–14), simple, petiolate or sessile; (middle ones) shortly petiolate or (distally) sessile, base not auriculate;

blade ovate to oblong, or oblong-linear to lanceolate, 3–6(–9) cm × 10–30(–45) mm, margins entire, repand, or dentate (margins minutely pubescent).

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, 2.5–4.5 × 1.5–2 mm, lateral pair not saccate basally, (glabrous);

petals usually white, rarely pale pink, obovate, (6–)7–12(–16) × 3–5 mm, (short-clawed, apex rounded);

filaments: median pairs 4.5–7 mm, lateral pair 2–3.5 mm;

anthers oblong, 1–1.5 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.

ascending to divaricate, (10–)15–22(–30) mm.

divaricate-ascending, 7–18 mm.

linear, 2–3.5(–4) cm × 1.4–1.7 mm;

ovules 14–24 per ovary;

style 2–4(–5) mm.

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.

dark orange to greenish yellow, oblong or globose, 1.7–2.1 × 1–1.4 mm.

brown, ovoid, 1–1.6 × 1–1.2 mm.

= 16, 56, 64, 80, 96, 112.

= 64.