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.

1–3, prostrate or erect, leafy proximally and distally, puberulent or canescent to gray-tomentose, sometimes glabrous, on caudex from subligneous rhizome.

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 and cauline;

basal: 1–4;

stipules adnate to petiole forming 2 linear-lanceolate wings, margins entire or laciniate, apex of each wing free, tips usually filamentous;

petiole 2.3–9.5 cm, puberulent or canescent;

blade purple-tinted abaxially or not, usually linear to narrowly lanceolate, oblanceolate or obovate, or lanceolate-elliptic, rarely ovate, 1.3–5 × 0.3–2.5 cm, base attenuate, margins usually lacerate, dentate, or serrate, sometimes entire, usually undulate, ciliate, apex acute, mucronulate, surfaces puberulent to canescent or gray-tomentose;

cauline similar to basal except: stipules lanceolate, oblanceolate, or linear-oblong, margins entire or lacerate, apex acute to acuminate;

petiole 0.9–8.3 cm;

blade 2.8–9.6 × 0.3–1.4 cm, length 4–11 times width.

2–12.5 cm, glabrous or puberulent.

2.9–11.5 cm, puberulent or canescent.

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, margins ciliate, auricles 0.5–1 mm;

petals deep lemon-yellow adaxially, upper 2 red- to purple-brown abaxially, lower 3 dark brown-veined, lateral 2 bearded, lowest 5–12 mm, spur color same as petals, gibbous, 1.5–3 mm;

style head bearded; cleistogamous flowers axillary.

spherical to oblong, 5–12 mm, glabrous.

ovoid, 3.5–7 mm, puberulent.

light brown, 2.8–3.3 mm.

medium to dark brown, 2–3.5 mm.

= 24, 48.

= 12.