Flora of North America species comparison

several, 5–150 cm.

well branched, 25–180 cm.

in poorly defined basal rosette and cauline;

petiole 0.7–3.4 cm;

blade unlobed, broadly ovate to oblong-ovate, elliptic, or subcordate, 1.2–7.6 × 0.8–5.5 cm, margins serrulate to serrate-denticulate, brown oil cells prominently lining veins abaxially.

cauline, often mostly toward base;

petiole 3–6 cm;

blade cordate-deltate, 2.5–4(–6) × 2.5–4(–6) cm, smaller distally, margins coarsely dentate.

erect, elongating in flower.

nodding, open.

opening at sunrise;

buds without free tips;

floral tube 0.6–1 mm;

sepals 5–7 mm;

petals purple, fading darker purple, 7–14 mm;

stamens 4 + 4, unequal, anthers 1.5–2 mm, glabrous, stigma exserted beyond anthers at anthesis.

floral tube 18–40 mm, finely pubescent inside;

sepals 8–15 mm;

petals bright to pale yellow, 8–20 mm;

filaments 5–9 mm, anthers 5–8 mm;

style 30–58 mm, stigma exserted beyond anthers at anthesis.

spreading to reflexed, clavate, 11–25 mm;

pedicel 3–5 mm.

ascending, cylindrical, 30–44 mm;

pedicel 2–5 mm.

1.5–1.8 mm.

0.5–0.7 mm.

= 14.