Flora of North America species comparison

unbranched or with many ascending branches arising near base, erect, 10–50 cm.

1–several, ascending, 5–60 cm.

in a basal rosette and cauline, basal 1–2(–4) × 0.2–0.6 cm, petiole 0.2–1(–1.5) cm, blade ovate to obovate or narrowly elliptic;

cauline 1–4 × less than 0.1 cm, sessile, blade linear or filiform.

in a basal rosette and cauline, basal 2–7 × 0.3–1.4 cm, blade narrowly elliptic to narrowly ovate, margins weakly serrulate to sinuate-pinnatifid;

cauline 1.2–6 × 0.3–1 cm, blade narrowly elliptic to elliptic or ovate, proximal ones sinuate-pinnatifid, margins subentire or weakly serrulate.

erect.

usually 1–3 opening per day near sunrise;

buds without free tips;

sepals 1.5–2 mm;

petals bright yellow, fading pink, obcordate to obovate, 3–5(–7) mm;

filaments 1–2 mm, anthers 0.5–1 mm;

style 1–2 mm, stigma surrounded by anthers at anthesis.

1–3 opening per day near sunrise;

buds with free tips 0–0.1 mm;

floral tube 9–14 mm;

sepals 7.5–13 mm;

petals rose purple, fading darker, 8–15 mm;

filaments 4–9 mm, anthers 2.5–4 mm, pollen 85–100% fertile;

style 12–19 mm, stigma surrounded by anthers at anthesis.

ellipsoid-rhombic to subglobose, 4-angled, 4–6(–10) × 1.5–3 mm, stipe 0–4 mm, valve midrib raised at distal end, indehiscent or tardily dehiscent distally;

sessile.

clavate or narrowly obovoid, 9–14 × 3–4 mm, apex attenuate to a sterile beak, valve midrib prominent in distal part, proximal stipe 4–15 mm, gradually tapering to base;

sessile.

clustered in each locule, ovoid, surface minutely papillose, 1 × 0.5 mm.

narrowly obovoid, 0.7–0.9 × 0.3–0.5 mm.

= 14.

= 14.