Flora of North America species comparison

unbranched or branched from base, 3–30 cm.

with several divergent branches from base, 10–50 cm.

primarily in basal rosette and also cauline;

petiole 0.5–8 cm;

blade usually not pinnately lobed or, if so, then lateral lobes greatly reduced, terminal lobe oblanceolate to cordate, 0.8–7.5 × 0.4–3 cm, margins entire or sparsely denticulate, pale brown oil cells lining veins abaxially.

primarily in basal rosette and cauline, 3–20 × 0.7–2.5 cm;

petiole 0.5–4 cm;

blade pinnately or bipinnately lobed, terminal lobe ovate to elliptic, 0.4–2.5 × 0.3–1.5 cm, margins irregularly serrate, dark brown oil cells prominently lining veins abaxially.

nodding, elongating after anthesis.

erect, elongating after anthesis.

opening at sunrise;

buds without subapical free tips;

floral tube 2–4.5 mm, villous inside proximally;

sepals 3–8 mm;

petals bright yellow, with red dots near base, fading pale yellow or yellowish orange, 5.5–9 mm;

stamens unequal, filaments of antisepalous stamens 3–8 mm, those of antipetalous ones 2.8–5.5 mm, anthers 2–4 mm, ciliate;

style 10–17 mm, stigma exserted beyond anthers at anthesis.

opening at sunrise;

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

floral tube 1.5–2 mm, glabrous inside;

sepals 2–5 mm;

petals bright yellow, with red dots near base, fading pale lavender, 2–6 mm;

stamens unequal, filaments of antisepalous stamens 1.5–3 mm, those of antipetalous ones 1–2 mm, anthers 1.2–2 mm, glabrous;

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

erect, spreading, or slightly reflexed, clavate, 18–40 mm;

pedicel 4–28 mm.

spreading to ascending, oblong-cylindrical, 8–20 mm;

pedicel 6–10 mm.

1.2–1.7 mm.

0.6–1 mm.

= 14.