Flora of North America species comparison

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

absent.

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

erect, ascending, or decumbent, unbranched or branched basally and/or distally, (0.3–)1–3.5(–4.5) dm, (not flexuous).

(persistent to anthesis), rosulate, (5–)8–15(–22)-foliolate, (2–)3.5–15(–17) cm, leaflets petiolulate;

petiole 0.5–5 cm, (ciliate);

lateral leaflet blade oblong, ovate, obovate, or orbicular, smaller than terminal, margins entire, repand, crenate, or 3-lobed;

terminal leaflet (petiolule 0.2–1 cm), blade reniform or orbicular, 0.4–2 cm × 6–30 mm, margins entire, repand, dentate, or 3 or 5-lobed.

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).

1–4(–6), compound as basal, petiolate, [(0.5–)1.2–5.5(–7) cm, including petiole], leaflets petiolulate;

blade base not auriculate;

leaflets similar to basal.

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, 1.5–2.5 × 0.3–0.7 mm, lateral pair not saccate;

petals (sometimes absent) white, spatulate, 2.5–4.5(–5) × 0.5–1.1 mm; (stamens usually 4, lateral pair often absent, rarely 5 or 6);

filaments 1.8–3 mm;

anthers ovate, 0.3–0.5 mm.

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

erect to ascending, (2–)3–10(–14) mm.

linear, 2–3.5(–4) cm × 1.4–1.7 mm;

ovules 14–24 per ovary;

style 2–4(–5) mm.

linear, (torulose), (0.9–)1.5–2.5(–2.8) cm × (0.8–)1–1.4 mm, (often appressed to rachis);

ovules 14–40 per ovary;

style 0.1–0.6(–1) mm.

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

light brown, oblong or subquadrate, 0.9–1.3(–1.5) × 0.6–0.9(–1.1) mm, (narrowly margined).

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

= 16.