Flora of North America species comparison

(tuberous at stem base), subglobose, (lobed or not), (3–)4–10 mm diam., (fleshy).

cylindrical, slender, 0.7–1.5 mm diam.

erect, unbranched, (0.7–)1–2.5(–3) dm, sparsely to densely hirsute, or glabrous basally, (trichomes (0.2–)0.3–0.6(–0.8) mm).

erect or ascending, unbranched, 0.3–1.5(–2) dm.

simple, (3–)5–15(–18) cm;

petiole (2–)4–12(–16) cm;

blade often orbicular to cordate, sometimes reniform or ovate, (1–)2–6 cm × (7–)17–50 mm, base obtuse to cordate, margins repand or entire.

pinnately 5 or 7-foliolate, (1.3–)2.5–6.5 cm, (not fleshy), leaflets petiolulate;

petiole (0.5–)1.5–5.5 cm;

lateral leaflets similar to terminal, blade sometimes smaller;

terminal leaflet (petiolule 0.15–0.7 cm), blade ovate to elliptic, (0.2–)0.4–1.2(–1.5) cm × (1–)2.5–6 mm, base cuneate to obtuse, margins entire, (apiculate).

3–6(–8), simple, petiolate or sessile; (middle) shortly petiolate or (distal) sessile, base not auriculate;

blade oblong to ovate or lanceolate, 2–5 cm × 5–25 mm, margins entire, repand, or coarsely dentate.

1–3, 5 or 7-foliolate, petiolate, leaflets petiolulate or subsessile;

petiole 0.2–1.5 cm, base not auriculate;

lateral leaflets similar to terminal;

terminal leaflet (subsessile or petiolule to 0.2 cm), blade ovate to elliptic, 0.6–1.3 × 0.1–0.7 cm, base cuneate, margins entire.

ebracteate.

ebracteate.

sepals oblong, 2.5–4(–6) × 1.5–2.5 mm, lateral pair not saccate basally, (surfaces often hirsute);

petals usually rose-purple to pink, rarely white, obovate, (7–)8–13(–15) × 3–5 mm, (short-clawed, apex rounded);

filaments: median pairs 4–7 mm, lateral pair 2–4 mm;

anthers oblong, 1.3–1.7 mm.

sepals ovate to oblong, 3–4 × 1.8–2.5 mm, lateral pair slightly saccate basally;

petals usually white, rarely lavender, broadly obovate, 7–10 × 3–6 mm, (clawed, apex rounded);

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

anthers oblong, 1–1.5 mm.

ascending to divaricate, (10–)15–35(–50) mm, sparsely pubescent or glabrous.

erect to ascending, 7–15(–25) mm.

linear, (1.5–)2–4 cm × 1.5–2 mm;

ovules 10–16 per ovary;

style 2–5 mm.

linear, 2–3 cm × 1.2–1.7 mm;

ovules 12–16 per ovary;

style 1–2 mm.

brown, oblong to ovoid, 1.7–2.5 × 1–5 mm.

brown, oblong, ca. 1.5 × 1 mm.

= 56, 64, 96, 112, 144.

= 28, 42, 64.