Flora of North America species comparison

many from base, ascending or erect, usually branched, 50–150 cm.

erect, green or flushed with red on proximal parts, sometimes inflorescence axis red, usually withside branches obliquely arising from rosette and secondary branches from main stem, 50–150 cm.

in a basal rosette and cauline, 0.5–9 × 0.

in a basal rosette and cauline, basal 13–30 × 3–5 cm, cauline 5–15 × 2.5–4 cm;

blade dark to bright green, white- or red-veined, narrowly oblanceolate to oblanceolate, sometimes narrowly elliptic to lanceolate distally, margins usually conspicuously crinkled, sometimes undulate, bluntly dentate, teeth widely spaced, sometimes sinuate-dentate proximally or lobed;

bracts persistent.

erect, unbranched.

4-merous, zygomorphic, opening at sunrise;

floral tube 4–9 mm;

sepals 9–17 mm;

petals white, fading light or deep pink, rhombic-obovate to elliptic, 10–15 mm;

filaments 7–12 mm, anthers 3.5–4.5 mm, pollen 90–100% fertile;

style 16–27 mm, stigma exserted beyond anthers at anthesis.

opening near sunset;

buds erect, 7–9 mm diam., with free tips terminal, erect to spreading, 5–8 mm;

floral tube 35–50 mm;

sepals yellowish green, usually flushed with red or red-striped, sometimes very dark red throughout, 28–45 mm;

petals yellow to pale yellow, fading yellowish white and somewhat translucent, very broadly obcordate, 35–50 mm;

filaments 17–25 mm, anthers 10–12 mm, pollen ca. 50% fertile;

style 50–80 mm, stigma exserted beyond anthers at anthesis.

ellipsoid or ovoid, 4-angled, 6–9 × 2–3.5 mm;

sessile.

erect or slightly spreading, dull green when dry, lanceoloid, 20–35 × 5–6 mm, free tips of valves 0.8–1.5 mm.

1–4, yellowish to light brown, 2–3 × 1–1.5 mm.

1.3–2 ×1–1.5 mm, ca. 50% abortive.

–1.3 cm;

blade narrowly elliptic to narrowly oblanceolate, margins coarsely and remotely serrate.

= 14.

= 14.