Flora of North America species comparison

(tuberiform, fragile), 4–9(–11) mm diam., (fleshy).

ovoid to oblong, (3–)4–18 mm diam., (fleshy, deeply underground).

erect or decumbent at base, unbranched, 2–6(–7.5) dm.

erect, unbranched, 1–3 dm.

5–13-foliolate, (4–)10–18(–25) cm, leaflets petiolulate or subsessile;

petiole (3–)5–12(–17) cm;

lateral leaflets subsessile, blade similar to terminal, sometimes smaller;

terminal leaflet (petiolule 0.4–0.7 cm), blade oblong to elliptic or ovate, (0.4–)0.7–1.7(–2) cm, base cuneate or obtuse, margins entire or obscurely 3-lobed.

simple, 1.2–2.3 cm;

petiole 6.7–19.5 cm;

blade orbicular to reniform, or cordate to broadly ovate, 2.7–5.5 cm × 30–68 mm, base cordate to subtruncate, margins with obtuse teeth terminating in apiculae.

2–6, 5–11-foliolate, petiolate, leaflets petiolulate or sessile;

petiole 3–10 cm, base not auriculate;

lateral leaflets sessile, blade similar to terminal, smaller;

terminal leaflet (petiolule 0.5–1.5 cm), blade narrowly ovate or oblong to oblanceolate, 1.5–3.5 cm × 2–15 mm, margins entire or toothed to 3-lobed.

2–5, (crowded distally), simple;

petiole 0.3–2.6 cm, base not auriculate;

blade similar to basal, 1.8–5.5 cm × 12–47mm, base cuneate or obtuse to subcordate, marginal teeth apiculate.

ebracteate.

ebracteate.

sepals oblong to ovate, 3.5–5 × 1.8–2.5 mm, lateral pair saccate basally;

petals white, obovate, 12–16 × 6–8 mm, (not clawed, apex rounded or subemarginate);

filaments: median pairs 6–7 mm, lateral pair 4–5 mm;

anthers oblong, 1.5–1.8 mm.

sepals oblong, 4–7 × 2–2.5 mm, lateral pair saccate basally;

petals usually pink or purple, rarely white, obovate to oblanceolate, 14–18 × 5–7 mm, (claw to 9 mm, apex rounded);

filaments: median pairs 7–8 mm, lateral pair 5.5–6.5 mm;

anthers oblong, ca. 1.5 mm.

ascending to divaricate, (10–)20–40(–60) mm.

divaricate to ascending, 7–24 mm.

linear, 2.5–4.5 cm × 1.4–2 mm;

ovules 12–24 per ovary;

style 4–6 mm.

linear, 3.2–5.4 cm × 2.2–4 mm;

ovules 10–14 per ovary;

style 4–7 mm.

brown, oblong, 1.8–2 × 1–1.5 mm.

brown, broadly ovoid, 2–2.8 × 1.8–2.5 mm.