Flora of North America species comparison

several, 10–100 cm.

often intricately branched, 5–80 cm.

primarily in poorly defined basal rosette, cauline greatly reduced when present;

petiole 0.4–8 cm;

blade unlobed, ovate to cordate, 2–11.5 × 1.4–5 cm, margins sinuate-dentate, brown oil cells prominently lining veins abaxially.

in poorly defined basal rosette and also cauline;

petiole 0.3–3.8 cm;

blade usually unlobed, very rarely pinnately lobed with few, small lateral lobes, ovate to elliptic, margins sparsely denticulate to subentire, pale or dark brown oil cells lining veins abaxially.

erect, elongating in anthesis.

nodding, with intricate, filiform branches, elongating in fruit.

opening at sunrise;

buds without free tips;

floral tube 2–5 mm, villous inside;

sepals 1.5–3.5 mm;

petals lavender, paler and often with flecks toward base, often yellow at very base, fading darker lavender, 2–6 mm;

stamens unequal, filaments of antisepalous ones 1.8–3 mm, of antipetalous ones 1–2.5 mm, anthers 0.6–1 mm, glabrous or sparsely ciliate;

style 4–7 mm, stigma surrounded by anthers at anthesis.

opening at sunrise;

buds without free tips;

floral tube 0.5–2 mm, glabrous or villous inside;

sepals 1.5–4 mm;

petals bright yellow, often with red dots near base, fading pale yellow or yellowish orange, 2–7 mm;

stamens unequal, filaments of antisepalous stamens 1.7–3.5 mm, those of antipetalous ones 1.2–2.5 mm, anthers 0.9–1.2 mm, glabrous;

style 4–9 mm, stigma exserted beyond anthers at anthesis.

erect, clavate, 7–13 mm;

pedicel 2–5 mm.

erect or ascending, clavate, 4–10 mm;

pedicel 4–20 mm.

1–1.2 mm.

0.7–1.2 mm.

= 14.

= 14.