Flora of North America species comparison

erect, branched or unbranched, 30–300 cm.

erect to decumbent, branched or unbranched, (10–)30–80 cm.

in a basal rosette and cauline, basal 3–7 × 0.5–2 cm, sessile, blade oblong to oblong-lanceolate, base usually ± auriculate, margins entire;

cauline 3–8(–10) × 0.4–1.8 cm, blade lanceolate to oblong-lanceolate, gradually smaller, becoming linear-subulate distally.

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.

long, wandlike, unbranched or branched.

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

4-merous, nearly actinomorphic, opening near sunrise;

floral tube 6–17 mm;

sepals 4–6 mm;

petals white, fading off-white or tinged pink, slightly unequal, rhombic, 4–6 mm, abruptly clawed;

filaments 5–8 mm, anthers 1.5–2 mm, pollen 85–100% fertile;

style 6–10, stigma exserted beyond 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.

ovoid, 4-angled, somewhat flattened, 3–4 × 1.5–2.3 mm, valves with raised midrib and conspicuous lateral veins;

sessile.

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.

1, pale yellow, oblanceoloid, 2.4–2.6 × 1–1.5 mm.

1 × 0.5 mm.

= 14.