Flora of North America species comparison

swollen, compact at stem base, (fleshy, stolons many, slender, ca. 1 mm diam., pubescent or glabrous).

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

erect, usually unbranched, rarely branched distally, 1–2.5 dm, sparsely to densely hirsute or pilose proximally, sparsely so or glabrous distally.

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).

usually simple, rarely 3-foliolate, (3–)6–16 cm, leaflets petiolulate or subsessile;

petiole (1.5–)4–13 cm;

lateral leaflets subsessile or petiolulate (to 0.5 cm), blade similar to terminal, much smaller;

terminal leaflet (petiolule 0.5–2 cm), blade orbicular to reniform or broadly ovate, (1–)1.5–4.5 cm, base cordate, margins repand to coarsely crenate, (apiculate at vein endings, surfaces sparsely pubescent or glabrous).

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.

2–5, 3 or 5-foliolate, petiolate, leaflets petiolulate or subsessile;

petiole 0.8–5 cm, base not auriculate;

lateral leaflets sessile or petiolulate (to 0.5 cm), blade similar to terminal, smaller;

terminal leaflet petiolulate (0.5–1.5 cm), blade broadly ovate to suborbicular, 1.5–4(–5) cm × 12–35 mm, margins repand to coarsely crenate or slightly lobed, (apiculate at vein endings, margins glabrous).

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.

ebracteate.

ebracteate.

sepals (ascending) oblong, 3–3.5 × 1–1.5 mm, lateral pair not saccate basally;

petals white, oblanceolate, 5–6.5(–8) × 1.5–2.5 mm, (not clawed, apex obtuse to subemarginate);

filaments: median pairs 3.5–5 mm, lateral pair 2.5–3 mm;

anthers oblong, 1.2–1.6 mm.

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.

ascending to divaricate-ascending, 7–20 mm.

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

linear, 1.5–2.5 cm × 1–1.2 mm;

ovules 10–14 per ovary;

style 1.2–2.5 mm.

linear, (1.5–)2–4 cm × 1.5–2 mm;

ovules 10–16 per ovary;

style 2–5 mm.

brown, oblong, 1.2–1.7 × 0.8–1.1 mm.

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

= 56, 64, 96, 112, 144.