Flora of North America species comparison

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

basal and cauline;

basal: 1–4, palmately compound, ± 2-ternate or 3-ternate, leaflets 3;

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

petiole 5–8 cm, glabrous;

blade ovate to deltate, 2.8–6 × 2.6–6.5 cm, ± coriaceous, base tapered, ultimate lobes narrowly elliptic, lanceolate, or oblanceolate, 1–7 mm wide, margins entire, ciliate or eciliate, apex acute, mucronulate, surfaces glabrous;

cauline similar to basal except: stipules usually lanceolate, sometimes broadly ovate, ± leaflike, margins toothed;

petiole 1.3–6 cm;

blade 2–4.8 × 1.2–5.5 cm.

basal, 1–8, ascending to erect;

stipules linear-lanceolate to broadly lanceolate, margins entire, sometimes distally glandular, apex acute;

petiole 5–20 cm, glabrous;

blade green abaxially, unlobed, usually narrowly to broadly deltate, 1.5–12 × 1.5–10 cm, not fleshy, base cordate or broadly cordate to truncate, margins ± crenate to serrate, ciliate or eciliate, apex acute to acuminate, surfaces glabrous, rarely pubescent.

2.5–11 cm, glabrous.

3–25 cm, usually glabrous.

sepals lanceolate to ovate, margins ciliate, auricles 0.5–1 mm;

petals: upper 2 almost black abaxially, dark reddish violet adaxially, lower 3 pale yellow, cream, or ± white, lateral 2 bearded, with deep yellow to orange patch basally, dark reddish violet-veined, lowest with deep yellow to orange patch basally, dark reddish violet-veined, 5–18 mm, spur yellow, gibbous, 0.5–2 mm;

style head bearded; cleistogamous flowers absent.

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

petals light to dark blue-violet, lowest and sometimes lateral 2 purple-veined, lateral 2 bearded, lowest beardless, rarely lightly bearded, 15–25 mm, spur same color as petals, gibbous, 2–3 mm;

style head beardless; cleistogamous flowers on prostrate to ascending peduncles.

ellipsoid, 4–12 mm, glabrous.

ellipsoid, 5–12 mm, glabrous.

light brown, shiny, 3.2–3.5 mm.

beige, mottled to bronze, 1.5–2.5 mm.

= 60, 72.

= 54.