Flora of North America species comparison

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

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.

in a basal rosette, 2.6–4.2(–6.2) × 1.4–4.2 cm;

petiole 2.5–9(–11.5) cm;

blade usually oblanceolate to obovate, sometimes suborbiculate, margins dentate, pinnately lobed, lateral lobes oblong to lanceolate, often absent or reduced to only a few lobes toward terminal lobe, base rounded to cordate.

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.

usually 1–3, rarely more, opening per day near sunset;

buds erect, quadrangular, without free tips;

floral tube 27–45(–55) mm;

sepals 25–30 mm;

petals intensely yellow, fading deep salmon red, obcordate, 25–38 mm;

filaments 17–23 mm, anthers 7–10 mm;

style 44–65(–80) mm, stigma somewhat exserted beyond anthers at anthesis.

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.

moderately thin and flexible, lanceoloid, falcate or sigmoid, often contorted and twisted, 4-angled, 35–90 × 7–11 mm, gradually tapering to a long, slender, sterile apex, 10–30(–40) mm, valves conspicuously wrinkled, dehiscent 2/3–3/4 their length;

sessile.

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

numerous, in 1 row per locule, often forming 2 rows near base of capsule, obovoid, 2.4–3.2 × 1.3–1.7 mm, surface coarsely rugose.

= 14.

= 14.