Flora of North America species comparison

erect to decumbent, green or flushed with red on proximal parts or throughout, unbranched or bushy and branched from base, with side branches arising obliquely or arcuately from rosette, 10–60 cm.

ascending to erect, with decumbent branches, thickened at base, tapering toward apex, 10–35(–60) cm.

in a basal rosette and cauline, basal 8–30 × 0.5–3 cm, cauline 3.5–20 ×0.5–2.7 cm;

blade grayish green to dull green, very narrowly oblanceolate to narrowly oblanceolate or narrowly elliptic, margins flat, subentire or remotely dentate, teeth sometimes blunt, sometimes sinuate-dentate proximally;

bracts persistent.

in a basal rosette and cauline, basal 5–10(–26) × 0.6–1.5(–3.5) cm, cauline 5–8(–15.5) × 1–2 cm;

petiole 0–12 cm;

blade lanceolate to oblanceolate, margins pinnatifid or sometimes coarsely serrate.

usually recurved with ascending tip distally, rarely suberect, unbranched.

opening near sunset;

buds erect, 3–5 mm diam., with free tips subterminal, spreading to erect, 2.5–4 mm;

floral tube 15–40 mm;

sepals green to yellow, flushed with red and dark red flecked or red-striped, 9–17 mm;

petals yellow to pale yellow, fading yellowish white to pale yellowish orange, very broadly obcordate, 7–20 mm;

filaments 6–15 mm, anthers 3–7 mm, pollen ca. 50% fertile;

style 20–45 mm, stigma surrounded by anthers at anthesis.

1–several opening per day near sunset;

buds nodding, weakly quadrangular, without free tips;

floral tube 26–31 mm;

sepals 19–26 mm, conspicuously maroon-spotted, each spot at base of a long hair;

petals white, fading pink to deep pink, broadly obovate or obcordate, 16–26(–36) mm;

filaments 9–15 mm, anthers 7–9 mm;

style 45–50 mm, stigma exserted beyond anthers at anthesis.

erect or slightly spreading, usually rusty brown when dry, narrowly lanceoloid to lanceoloid, 15–40 × 4–8 mm, free tips of valves 0.5 mm.

spreading, woody in age, curved upward, or distal end recurved, cylindrical, obtusely 4-angled, especially toward base, tapering gradually from base to apex, 30–80 × 2.5–3.5 mm;

sessile.

1.1–1.2 ×0.8–1 mm.

numerous, in 1 row per locule, light brown to yellowish brown with dark purple splotches, obovoid, 1.6–2 mm.

= 14.

= 14.