Flora of North America species comparison

well branched, 15–50 cm.

usually unbranched, sometimes branched from base, 3–45 cm.

in well-developed basal rosette and also cauline, 7–20 × 1.5–2.5 cm;

petiole 1–4(–8) cm;

blade pinnately lobed, terminal lobe oblanceolate to narrowly ovate, 2.5–5 × 1–2.5 cm, margins irregularly dentate, oil cells on abaxial surface inconspicuous.

primarily in basal rosette, cauline poorly developed or absent, 1–18 × 0.5–3.5 cm;

petiole 0.5–6.5 cm;

blade pinnately lobed or lateral lobes greatly reduced or absent, sometimes mixed on same plant, terminal lobe narrowly ovate to ovate or elliptic, 1–6.5 × 0.5–3.3 cm, margins irregularly dentate to subentire, oil cells on abaxial surface inconspicuous or conspicuous, pale yellowish brown or dark brown.

nodding, dense, mostly elongating after flowers open.

nodding, elongating in fruit.

opening at sunrise;

buds with conspicuous, subapical free tips 1–2 mm;

floral tube 3–5 mm, short-villous inside proximally;

sepals 9–12 mm;

petals bright yellow, with red dots at base, fading lavender, 12–18 mm;

stamens unequal, filaments of antisepalous stamens 6–8 mm, those of antipetalous ones 4–5 mm, anthers 4–6 mm, ciliate;

style 11–18 mm, stigma exserted beyond anthers at anthesis.

opening at sunrise;

buds with or without subapical free tips less than 1 mm;

floral tube 1–4 mm, sparsely villous or glabrous inside;

sepals 1.2–5 mm;

petals bright yellow, often with red dots near base, fading pale yellow or yellowish orange, 1.5–5.5(–8) mm;

stamens unequal, filaments of antisepalous stamens 1.2–6 mm, those of antipetalous ones 0.5–4 mm, anthers 1–2.5 mm, ciliate or glabrous;

style 3–11 mm, stigma surrounded by anthers at anthesis.

ascending or spreading, oblong-cylindrical, immature capsule to 35 mm;

pedicel 5–15 mm.

ascending, clavate, 8–50 mm;

pedicel 4–20 mm.

not known.

1–2 mm.