Flora of North America species comparison

spreading or ascending, unbranched or few-branched distally, 20–80 cm.

usually erect to slightly decumbent, unbranched to few-branched distally, (3–)15–30(–75) cm.

in a basal rosette and cauline, basal 4–8 × 2–5 cm, petiole (0.5–)1–3(–4) cm, blade oblanceolate to ovate, margins entire;

cauline 3–10(–13) × 1–2(–4) cm, petiole 0–0.5(–2) cm, blade lanceolate to ovate, abruptly narrowed to base, margins subentire or coarsely dentate.

in a basal rosette and cauline, basal 2–4 × 0.2–1.2 cm, petiole (0.2–)0.5–1.2(–2.5) cm, blade oblanceolate to obovate;

cauline 3–7 × 0.2–1.2 cm, petiole 0.1–1 cm, blade oblanceolate to obovate, margins entire or weakly and remotely denticulate.

erect, flowers in axils of distalmost few nodes.

nodding, flowers in axils of distalmost few nodes.

opening near sunrise;

buds with free tips 1–3 mm, spreading;

floral tube 10–25 mm;

sepals 10–20 mm;

petals bright yellow, fading pale pink or pale yellow, 15–30 mm;

filaments 7–15 mm, anthers 4–8 mm, pollen 85–100% fertile;

style 10–20 mm, stigma exserted beyond anthers at anthesis.

opening near sunrise, nearly unscented;

buds with free tips to 1 mm, connivent;

floral tube 3–10 mm;

sepals 2–4 mm;

petals bright yellow, fading pale yellow, or orangish yellow to pale pink, 5–10 mm;

filaments 3–4 mm, anthers 1–2 mm, pollen 40–70% fertile;

style 3–4 mm, stigma surrounded by anthers at anthesis.

usually oblong-clavate to oblong-ellipsoid or ellipsoid, 4-angled or weakly 4-winged, (5–)10–15(–28) × 2–4(–5) mm, stipe (1–)3–5(–9) mm;

sessile.

clavate, 4-angled or narrowly 4-winged, 5–10 × 2–3 mm, stipe 1–2 mm;

sessile.

1 × 0.5 mm.

0.7–0.8 × 0.2–0.3 mm.

= 56.

= 14.