Flora of North America species comparison

1–3(–5), prostrate or decumbent to erect, leafy proximally and distally, densely white-tomentose, from usually vertical, subligneous rhizome.

basal and cauline;

basal: 1–6;

stipules linear to broadly ovate-oblong, margins entire, sometimes with scattered glandular hairs, apex acute to obtuse;

petiole 2–6 cm, densely white-tomentose;

blade ± oblanceolate to elliptic, 1.5–5 × 1.4–2.1 cm, base attenuate, usually oblique, margins usually entire, rarely crenate distally, ciliate, apex acute to usually obtuse, mucronulate, surfaces densely white-tomentose abaxially, strigose adaxially;

cauline similar to basal except: stipules ovate, lanceolate, oblanceolate, or oblong, margins entire or toothed, densely ciliate with white hairs;

petiole 1.5–3.5 cm;

blade 1.8–4 × 0.6–1.1 cm.

basal, ca. 5, ascending to erect;

stipules ± oblong, 2-fid, proximal margins entire, distal ± serrate, apex acuminate;

petiole narrowly winged distally, 1–14 cm, usually glabrous;

blade unlobed, broadly ovate or triangular-ovate, 3–8 × 3–5.5 cm, base cordate, margins crenate, usually eciliate, apex acute or ± obtuse, surfaces sparsely puberulent.

1–4 cm, densely white-tomentose.

3–6 cm, glabrous or pubescent, bracteoles near middle.

sepals lanceolate, margins ciliate-tomentose, auricles 0.5–1 mm;

petals deep lemon-yellow adaxially, upper 2 often brownish purple abaxially, lower 3 dark brown- to brownish purple-veined, lateral 2 bearded, lowest 6–11 mm, spur yellow, gibbous, 0.5–1.5 mm;

style head bearded; cleistogamous flowers absent.

sepals broadly lanceolate, margins eciliate, auricles 6–8 mm;

petals light violet or whitish violet on both surfaces, lowest 3 occasionally white basally, often dark violet-veined, lateral 2 sparsely bearded or beardless, lowest 17–20 mm, spur pale to dark violet, elongated, 5–10 mm;

style head beardless; cleistogamous flowers present.

± spherical, 4–5 mm, densely white-tomentose.

ellipsoid, 8–10 mm, glabrous.

brown with lighter brown mottling, 2.5–2.8 mm.

unknown.

and ruderal areas; 10–50 m; introduced;

Mass.;

Asia (China, Japan, Korea).

= 12.

= 48.Flowering Apr–Jun.