Flora of North America species comparison

(tuberiform, fragile) moniliform, segments fusiform, 3–6 mm diam. (fleshy).

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

erect, unbranched, 1.2–3(–4) dm, glabrous or pubescent.

(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).

3-foliolate, to 24 cm, leaflets petiolulate or subsessile;

petiole (3–)5–12(–16) cm;

lateral leaflets subsessile or petiolulate (0.2–1 cm), blade similar to terminal leaflet or smaller;

terminal leaflet (petiolule) (0.2–)0.5–1.5(–2) cm, blade broadly ovate to rhombic-obovate, 1.5–6(–8) cm, base usually cuneate, rarely subtruncate, margins coarsely dentate to crenate or 3-lobed, surfaces puberulent or not.

2 (or 3), 3-foliolate (usually alternate, rarely opposite, different in morphology from rhizomal), petiolate, leaflets petiolulate or sessile;

petiole 0.5–2 cm, base not auriculate;

lateral leaflets sessile, blade similar to terminal, smaller, margins usually dentate, rarely entire;

terminal leaflet sessile or petiolulate, blade narrowly lanceolate to narrowly oblong or oblong-lanceolate, 2–7 × 0.3–0.6 cm, margins minutely puberulent.

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, 5–7.5 × 1–2 mm, lateral pair slightly saccate basally;

petals purple to pale pink, oblanceolate, 9–18 × 2–5 mm (clawed, apex rounded);

filaments: median pairs 5–10 mm, lateral pair 3.5–8 mm;

anthers linear, 1.5–3 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, 15–40 mm.

divaricate-ascending, 7–18 mm.

linear, 2.5–4 cm × 1.5–2.5 mm;

ovules 8–12 per ovary;

style (5–)7–11 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 brown, oblong, 2–2.5 × 1–1.5 mm.

brown, ovoid, 1–1.6 × 1–1.2 mm.

= ca. 128.

= 64.