Flora of North America species comparison

erect or ascending, usually many-branched, 10–120 cm.

erect, branched below and just above ground, branched also proximal to inflorescences, 60–250(–300) cm.

in a basal rosette (but not present at flowering) and cauline, 0.7–6.5 × 0.1–1.5 cm, blade linear to narrowly elliptic, margins entire or remotely and coarsely serrate.

in a basal rosette and cauline, (1–)3–9 × (0.1–)0.5–1.3 cm, blade linear or narrowly lanceolate to narrowly oblanceolate, margins slightly to coarsely sinuate-dentate.

slender, often well-branched, buds small and well-spaced.

4-merous, zygomorphic, opening near sunset;

floral tube 4–11(–13) mm;

sepals 5–9(–10) mm;

petals white, fading salmon pink to scarlet-red, slightly unequal, obovate to elliptic-obovate or elliptic, 3–7(–8) mm, abruptly clawed;

filaments 3–6.5(–7) mm, anthers (2.5–)3–5(–5.5) mm;

style 10–22 mm, stigma exserted beyond anthers at anthesis.

4-merous, zygomorphic, opening near sunset;

floral tube 2.5–6 mm;

sepals 5–12.5 mm;

petals white, fading pink to red, slightly unequal, elliptic, 5–10 mm, clawed;

stamens presented evenly around flower parts, filaments 3–8.5 mm, anthers 1.4–4 mm, pollen 90–100% fertile;

style 8.5–19 mm, stigma exserted beyond anthers at anthesis.

erect, pyramidal in distal 1/2 and abruptly constricted to terete proximal part, pyramidal part weakly or strongly angled, not conspicuously bulging at base, 4–9 × (1–)1.5–3 mm;

sessile.

ovoid, narrowly 4-winged or 4-angled, 5–10 × 1.5–2 mm, abruptly constricted to a sterile stipe 0.5–4.5 mm.

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

1 or 2, yellowish to reddish brown, 1.5–3.5 × 1–1.5 mm.

= 14, 28, 42, 56.

= 14.