Flora of North America species comparison

erect or ascending, usually many-branched throughout, proximal branches often somewhat spongy, 50–120 cm.

erect, several-branched near ground, also branched proximal to inflorescences, 60–280 cm.

in a basal rosette and cauline, softly succulent, 4–13.5 × 0.8–2.1 cm, petiole 0–1.5 cm, blade lanceolate to elliptic-lanceolate, margins remotely denticulate.

in a basal rosette and cauline, 0.5–8 × 0.15–2 cm, sessile, blade narrowly lanceolate or oblanceolate to very narrowly elliptic or linear, margins usually subentire or shallowly sinuate-dentate, sometimes deeply sinuate-dentate, often undulate.

erect, flowers in axils of distalmost few nodes.

slender.

opening near sunrise;

buds with free tips 0.5–2(–5) mm, erect to spreading;

floral tube 14–20 mm;

sepals 20–30 mm;

petals bright yellow, fading pale pink or lavender, 16–27 mm;

filaments 10–15 mm, anthers 7–8 mm, pollen 85–100% fertile;

style 15–30 mm, stigma exserted beyond anthers at anthesis.

4-merous, zygomorphic, opening near sunset;

floral tube 1.5–5 mm;

sepals 6–14 mm;

petals white, fading pink to red, slightly unequal, elliptic, 7–13 mm, clawed;

stamens presented in lower 1/2 of flower, filaments 4.5–11 mm, anthers 2–4.5 mm, pollen 90–100% fertile;

style 9–19 mm, stigma exserted beyond anthers at anthesis.

oblong-clavate to oblong-ellipsoid, 4-angled or 4-winged, and wings 0.1–0.2 mm, 7–15 × 4–6 mm, stipe 2–5 mm;

sessile.

lanceoloid to narrowly ovoid, 4-winged, 9–19 × 1–3.5 mm, abruptly constricted to a long, sterile stipe 2–10 mm.

0.8 × 0.4 mm.

(1 or)2–4, 2–3(–4) × 0.8–1.3 mm, yellowish to light brown or rarely reddish brown.

= 56.