Flora of North America species comparison

1–4, prostrate, decumbent, or erect, leafy proximally and distally, glabrate or sparsely puberulent, on caudex from subligneous rhizome.

basal, 2–5, prostrate to ascending, often overlapping basally;

stipules linear-lanceolate, margins entire, apex acute;

petiole 2–8 cm, pubescent;

blade unlobed, orbiculate, reniform, or ovate, 2–12 × 1.5–9 cm, base cordate, margins crenate to serrate, sometimes glandular, ciliate or eciliate, apex rounded to acute, surfaces usually pubescent throughout or concentrated proximally on both surfaces.

basal and cauline;

basal: 1–3;

stipules adnate to petiole, forming 2 linear-lanceolate wings, margins entire or laciniate with glandular hairs, apex of each wing free, acute, sometimes divided into several filiform processes;

petiole 2–8(–12) cm, glabrate or sparsely puberulent;

blade usually broadly ovate, sometimes ± orbiculate, 1–4.5 × 0.7–3.4 cm, base usually attenuate, rarely truncate or subcordate, margins ± coarsely crenate-serrate, ciliate, apex obtuse, surfaces glabrate or sparsely puberulent;

cauline similar to basal except: stipules lanceolate or linear-lanceolate to linear, margins ± entire or lacerate to laciniate with sparse gland-tipped projections, apex acute to acuminate, often divided into 2–4 filiform processes;

petiole 3–8.7 cm;

blade ovate to oblong-ovate or oblong-lanceolate, 0.7–1.6 × 2.6–3.7 cm, margins shallowly serrate, irregularly crenate, or ± entire, apex acute to obtuse.

1.5–7 cm, usually pubescent.

4–10 cm, glabrate or sparsely puberulent.

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

petals deep lemon-yellow on both surfaces, lower 3 brownish purple-veined, lateral 2 bearded, lowest 8–11 mm, spur yellow, gibbous, 1–2 mm;

style head beardless; cleistogamous flowers on prostrate or partially subterranean rhizomes or on racemelike, nonrooting, and usually leafless branches growing from rhizome apex.

sepals lanceolate, margins ciliate or eciliate, auricles 1–1.5 mm;

petals deep lemon-yellow adaxially, upper 2 and sometimes lateral 2 reddish brown to brownish purple abaxially, lower 3 and sometimes upper 2 dark brown-veined, lateral 2 sparsely bearded, lowest 10–13 mm, spur yellow, gibbous, 0.5–1.5 mm;

style head bearded; cleistogamous flowers axillary.

ellipsoid, 5–10 mm, glabrous.

± spherical, 6–7 mm, glabrous or finely puberulent.

beige, 1–2 mm.

brown, ca. 3 mm.

= 12.

= 24.