Flora of North America species comparison

erect, unbranched or many-branched distally, (20–)30–200(–300) cm.

usually well-branched distal to base, 50–400 cm.

in a basal rosette and cauline, basal 4–15 × 1.5–3 cm, petiole 0–1.8 cm, blade broadly oblanceolate, margins sinuate-dentate to dentate;

cauline 2–13 × 0.5–5 cm, petiole 0–2 cm, blade narrowly elliptic to narrowly ovate, margins sinuate-dentate to dentate.

in a basal rosette and cauline, 3–7 × 0.2–0.8 cm;

blade narrowly elliptic to elliptic or lanceolate, margins subentire or shallowly undulate-denticulate.

relatively long, dense.

4-merous, nearly actinomorphic, opening near sunset;

floral tube 1.5–5 mm;

sepals 2–3.5 mm;

petals white, fading pale to dark pink, slightly unequal, oblong-obovate to elliptic-oblanceolate, 1.5–3 mm, abruptly clawed;

filaments 1.5–3 mm, anthers 0.5–1 mm, pollen 85–100% fertile;

style 3–9 mm, stigma surrounded by anthers at anthesis.

4-merous, zygomorphic, opening at sunrise;

floral tube 4–13(–15) mm;

sepals 13–20 mm;

petals white, fading pink, rhombic-obovate, 10–17 mm;

filaments 8–17 mm, anthers 3–7 mm, pollen 90–100% fertile;

style 18–32 mm, stigma exserted beyond anthers at anthesis.

fusiform, terete, weakly angled in distal 1/3, angles becoming broad and rounded in proximal part, 5–11 × 1.5–3 mm, tapering abruptly toward base;

sessile.

ellipsoid or ovoid, sharply 4-angled, 4.5–7 × 1.5–2.5 mm;

sessile.

3 or 4, reddish brown, 2–3 × 1–1.5 mm.

2–4, yellowish to reddish brown, 1.2–3 × 0.7–1.3 mm.

= 14.

= 14.