Flora of North America species comparison

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

erect to decumbent, branched or unbranched, (10–)30–80 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, rosette usually withered by anthesis, surfaces sometimes glaucous, especially abaxially, basal 3–12 × 0.5–3 cm, petiole 1–4 cm, blade oblanceolate to obovate, margins subentire, dentate, or denticulate, sometimes undulate;

cauline 2–6(–11) × (0.1–)0.5–2(–5) cm, petiole 0.1–2(–6) cm, blade linear, lanceolate to oblanceolate, narrowly elliptic, or ovate, margins subentire or dentate or denticulate, sometimes undulate.

usually erect, rarely nodding, flowers in axils of distalmost few nodes.

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.

opening near sunrise;

buds with free tips 0.5–8(–13) mm, connivent, sometimes spreading;

floral tube 5–20 mm;

sepals 5–20 mm;

petals pale to bright yellow, fading pale pink, orangish pink, or yellow, (8–)15–25(–30) mm;

filaments 5–15 mm, anthers 4–7 mm, pollen 85–100% fertile;

style 12–20 mm, stigma exserted beyond anthers at anthesis.

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

clavate to oblong-clavate or oblong-ellipsoid, 4-angled to 4-winged, (5–)10–17(–20) × (2–)3–4(–6) mm, stipe 0.1–10 mm;

sessile.

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

1 × 0.5 mm.

= 14.