Flora of North America species comparison

1–3+, ascending to erect, leafless proximally, leafy distally, glabrous or puberulent, from subligneous rhizome.

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.

basal and cauline;

basal: 0–4;

stipules ovate to lanceolate, margins entire, coarsely toothed, or crenate, apex acute or obtuse;

petiole 2.7–19.6 cm, lanceolate, margins ciliate or eciliate, auricles 0.1–0.5 mm;

petals lemon-yellow on both surfaces, lower 3 brownish purple-veined, lateral 2 and sometimes others, bearded, lowest 8–18 mm, spur yellow to greenish, gibbous, 1–2.5 mm;

style head bearded; cleistogamous flowers axillary.

3–11 cm, glabrous or pubescent.

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.

ovoid to ellipsoid, 4–6 mm, glabrous.

ellipsoid, 8–12(–20) mm, glabrous or tomentose.

beige to bronze, 1.5–2 mm.

brown, 1.8–3 mm.

= 44, 48.

= 12.