Flora of North America species comparison

1–3, decumbent or ascending to erect, ca. 1/2 subterranean, glabrous or puberulent, from single, short, vertical, deep-seated caudex.

basal and cauline;

basal: 1–6, bipinnately compound, leaflets 3–5;

stipules adnate to petiole forming 2 linear-lanceolate wings, unlobed, margins entire, apex of each wing free, acute to acuminate;

petiole 5–6.8 cm, glabrous or puberulent;

blade ovate, 3.5–5 × 2.4–3.5 cm, base tapered, leaflets 3–5-lobed, lobes linear, narrowly elliptic, or oblong, 1–2.5(–5) mm wide, margins entire, usually densely ciliate, apex acute to obtuse, mucronulate, surfaces glabrous or puberulent;

cauline similar to basal except: stipules ovate to linear-lanceolate, margins entire or toothed, apex acute;

petiole 0.9–4 cm;

blade 1.1–4.1 × 1–3.6 cm.

basal, 2–9, prostrate to ascending;

stipules linear-lanceolate, margins entire, apex acute;

petiole 2–11 cm, usually sparsely pubescent;

blade unlobed, reniform to ovate, 2–4 × 2–4 cm, base cordate, lobes often overlapping, margins serrate, ciliate or eciliate, apex rounded or acute to acuminate, surfaces sometimes glabrous, usually sparsely pubescent adaxially.

2–12.5 cm, glabrous or puberulent.

3–11 cm, glabrous or pubescent.

sepals lanceolate, margins ciliate, auricles 0.5–1.5 mm;

petals light golden yellow adaxially, upper 2 dark brown to ± black abaxially, lower 3 dark brown-veined, lateral 2 bearded, lowest 8–21 mm, spur dark greenish to dark brown, gibbous, 1.5–2 mm;

style head bearded; cleistogamous flowers absent.

sepals lanceolate to ovate, margins mostly eciliate, auricles 1–2 mm;

petals white on both surfaces, lower 3 purple-veined, lateral 2 usually beardless, lowest 8–10 mm, spur white, gibbous, 1–2 mm;

style head beardless; cleistogamous flowers axillary.

spherical to oblong, 5–12 mm, glabrous.

ovoid to ellipsoid, 4–6 mm, glabrous.

light brown, 2.8–3.3 mm.

beige to bronze, 1.5–2 mm.

= 24, 48.

= 44, 48.