Flora of North America species comparison

1–several, ascending to decumbent, 7–65 cm.

erect to ascending, usually unbranched, or with arcuate lateral branches arising from rosette, 15–40(–60) cm.

in a basal rosette and cauline, basal 1–6 × 0.3–2 cm, blade narrowly elliptic to elliptic or ovate, margins subentire, weakly serrulate, or sinuate-pinnatifid;

cauline 1–6 × 0.3–2 cm, blade narrowly elliptic to narrowly ovate, margins subentire or weakly serrulate, proximal ones sinuate-pinnatifid.

in a basal rosette and cauline, basal 6–10 × 1–2.5 cm, cauline 3–7.5 × 0.8–2 cm;

blade usually grayish green, narrowly oblanceolate to narrowly oblanceolate, margins deeply lobed, lobes usually dentate;

bracts distalmost erect, revolute.

erect.

1–3 opening per day near sunrise;

buds with free tips 0.1–1 mm;

floral tube 4–8 mm;

sepals 6–12 mm;

petals rose purple, fading darker, 4–12 mm;

filaments 4–6 mm, anthers 2–3.5 mm, pollen 35–65% fertile;

style 7–13.5 mm, stigma surrounded by anthers at anthesis.

usually 1 opening per day near sunset;

buds erect, with free tips erect or appressed, 0.5–2.5 mm;

floral tube 23–28 mm;

sepals 5–12 mm;

petals yellow, fading orange, broadly obovate or shallowly obcordate, 6–15 mm;

filaments 4–12 mm, anthers 3–4 mm, pollen 85–100% fertile;

style 27–40 mm, stigma surrounded by anthers at anthesis.

narrowly obovoid, 4–12 × 2–4 mm, apex attenuate to a sterile beak, proximal stipe 5–20 mm, gradually tapering to base, valve midrib prominent in distal part;

sessile.

cylindrical, sometimes slightly enlarged toward apex, 25–45 × 2.5–3 mm.

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

ellipsoid to subglobose, 0.8–1.2 × 0.3–0.5 mm.

= 14.

= 14.