Flora of North America species comparison

erect to ascending, unbranched to much branched, 5–50 cm.

1–several, ascending, 5–60 cm.

in a basal rosette and cauline, basal 4–15 × 1–3 cm, cauline 2–10 × 0.5–3.5 cm;

blade green, narrowly oblanceolate to narrowly elliptic or narrowly oblong, margins usually dentate or deeply lobed;

bracts spreading, flat.

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 opening per day near sunset;

buds erect, with free tips erect, 0.3–3 mm;

floral tube 12–35 mm;

sepals 5–15 mm;

petals yellow, fading orange or reddish tinged, broadly obovate or obcordate, 5–22 mm;

filaments 3–14 mm, anthers 4–5 mm, pollen ca. 50% fertile;

style 20–50 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.

cylindrical, sometimes slightly enlarged toward apex, 20–50 × 2–4 mm.

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.

ellipsoid to subglobose, 0.9–1.8 × 0.4–0.9 mm.

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

= 14.

= 14.