Flora of North America species comparison

ascending, branched below or just above ground, branched also proximal to inflorescences, 30–70(–120) cm.

1–several, ascending, 5–60 cm.

in a basal rosette and cauline, basal 3–17 × 0.8–2 cm, blade oblanceolate, cauline 1–6.5 × 0.1–1.5 cm, sessile, blade narrowly oblanceolate to elliptic, margins conspicuously sinuate-dentate, often undulate.

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.

slender.

erect.

4-merous, zygomorphic, opening near sunset;

floral tube 2–3.5 mm;

sepals 6–12 mm;

petals white, fading dark pink to red, slightly unequal, elliptic-obovate, 7–11 mm, long-clawed;

stamens presented in lower 1/2 of flower, filaments 5–9 mm, lanate at very base, anthers 2–4 mm, pollen 90–100% fertile;

style 9–16 mm, stigma exserted beyond 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.

reflexed, lanceoloid to narrowly ovoid, narrowly 4-winged, 8–19 × 1.5–2 mm, tapering to a sterile stipe 3–9 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.

(1 or)2–4, 2–3 × 1 mm, yellowish to reddish brown.

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

= 14.

= 14.