Flora of North America species comparison

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

erect, branched below and just above ground, branched also proximal to inflorescences, 40–120(–250) 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, (1–)3–11 × (0.1–)0.5–2 cm, blade linear to narrowly oblanceolate, margins usually sparsely sinuate-dentate, rarely subentire, often undulate.

relatively long, dense.

stout.

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 near sunset;

floral tube 2.5–5 mm;

sepals 7–14 mm;

petals white, fading pink to red, slightly unequal, elliptic, 7–15 mm;

stamens presented in lower 1/2 of flower, filaments 5–11 mm, lanate at very base, anthers 3–5 mm, pollen 90–100% fertile;

style 12–19 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.

narrowly ovoid, narrowly 4-winged or 4-angled, 8–15 × 1.5–3.5 mm, abruptly constricted to a long, sterile stipe 2–8 mm.

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

(1 or)2–4, light to reddish brown, 2–3 × 1–1.5 mm.

= 14.

= 28.