Flora of North America species comparison

several, 10–200 cm.

slender, unbranched or branched from base, 10–60 cm.

in poorly defined basal rosette and cauline;

petiole 1.8–5.5 cm;

blade unlobed, broadly cordate to ovate, 2.4–8 × 7 cm, margins sinuate-dentate, yellowish oil cells prominently lining veins abaxially.

in basal rosette and/or cauline, often purple-dotted, 2–22 × 0.4–3.5 cm;

petiole 0.4–8 cm;

blade pinnately lobed, sometimes lateral lobes greatly reduced or absent and blade reduced to terminal lobe only, terminal lobe oblong or cordate to ovate, 1–5 × 0.5–3.2 cm, margins serrate, brown oil cells prominently lining veins abaxially.

erect, elongating in flower.

erect, elongating after anthesis.

opening at sunrise;

buds without free tips;

floral tube 4–9 mm, with matted, villous hairs inside;

sepals 4.5–9 mm;

petals pale to dark lavender, diffusely purplish-flecked near base, white at very base, fading darker lavender, 9–14 mm;

stamens unequal, filaments of antisepalous stamens 6–12 mm, of antipetalous ones 3.5–8 mm, anthers 2 mm, glabrous;

style 14–22.5 mm, stigma exserted beyond anthers at anthesis.

opening at sunrise;

buds individually reflexed, with apical free tips less than 1 mm;

floral tube 0.5–1.5 mm, glabrous or sparsely villous inside;

sepals 1.5–5 mm;

petals bright yellow, fading pale orange or lavender, 1–6 mm;

stamens unequal, filaments of antisepalous stamens 1–3 mm, those of antipetalous ones 0.3–2 mm, anthers 0.5–2 mm, glabrous or sparsely ciliate;

style 1.5–6 mm, stigma surrounded by anthers at anthesis.

erect or ascending, clavate, 8–14 mm;

pedicel 2–3.5 mm.

spreading or ascending, oblong-cylindrical, 11–45 mm;

pedicel 5–30 mm.

1–1.3 mm.

0.6–1.2 mm.

= 14.