Flora of North America species comparison

virgate with numerous divergent branches, 20–150 cm.

branched, 3–75 cm.

primarily in well-developed basal rosette, cauline reduced or absent, 6–30 × 1.4–6.5 cm;

petiole 0.3–6 cm;

blade pinnately or bipinnately lobed, terminal lobe ovate to elliptic, 2.5–6.5 × 1.5–3 cm, margins irregularly serrate, dark brown oil cells prominently lining veins abaxially.

primarily in basal rosette, cauline greatly reduced when present, 6–14 × 1.5–3.5 cm;

petiole 1.5–4(–11) cm;

blade pinnately lobed or lateral lobes greatly reduced or absent, often mixed on same plant, terminal lobe usually ovate, rarely elliptic, 2.5–6.9 × 1.5–7 cm, margins irregularly dentate, oil cells on abaxial surface inconspicuous.

erect to nodding, elongating in bud.

nodding, mostly elongating after flowers.

opening at sunrise;

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

floral tube 1–3 mm, glabrous or villous inside proximally;

sepals 3–8 mm;

petals usually bright yellow, rarely cream, fading yellow to lavender, 4–9 mm;

stamens unequal, filaments of antisepalous stamens 2.5–4 mm, those of antipetalous ones 1.3–3 mm, anthers 2–4 mm, ciliate;

style 7–11 mm, stigma exserted beyond anthers at anthesis.

opening at sunrise;

buds sometimes individually reflexed, without free tips or with subapical free tips 1–2 mm, or with minute, apical free tips less than 1 mm;

floral tube 3–8 mm, densely short-villous inside proximally;

sepals 5–9 mm;

petals bright yellow, sometimes with red dots at base, fading yellow to orange or reddish, 3–18 mm;

stamens subequal, filaments 3–6 mm, anthers 2.5–6 mm, ciliate;

style 10–18 mm, stigma exserted beyond anthers at anthesis.

usually spreading, rarely slightly reflexed, oblong-cylindrical, 10–52 mm;

pedicel 7–20 mm.

ascending or spreading, oblong-cylindrical, 18–92 mm;

pedicel 2–20 mm.

1–1.3 mm.

1–1.5 mm.

= 14.