Flora of North America species comparison

1–several, erect, mostly simple, occasionally 1–3-branched.

1, erect, 1–3-branched.

blade linear, often twisted, flat to concavo-convex, widest considerably beyond middle, 25–60 × 1.2–1.7 cm, glaucous, smooth, margins minutely denticulate, lemon yellow, hyaline, apex spinose, spine tipped.

blade linear, flat or concavo-convex or slightly keeled, widest at or above middle, 20–30(–45) × 0.7–1.2 cm, flexible, ± scabrous adaxially and abaxially, margins denticulate, yellow or orangish red, corneous, apex sharp-pointed.

paniculate, arising just within or beyond rosettes, ovoid, 3–10 dm;

branches up to 3.8 dm;

bracts erect;

peduncle sometimes scapelike, 0.3–1 m, less than 2.5 cm diam., glabrous or glabrescent.

paniculate, racemose at apex, arising beyond rosettes, 5–8 dm;

branches to 2 dm;

bracts erect, 10–13(–17) cm;

peduncle sometimes scapelike, (0.3–)0.4–0.7 m, 1.3–2 cm diam., glabrous or glabrescent.

pendent;

perianth globose to campanulate;

tepals distinct, white, narrowly ovate, 4.2–5.2 × 1.1–2 cm, apex sharply acuminate;

filaments 1.7–2 cm;

pistil 2.5–3.5 cm;

style white, 6–14 mm;

stigmas lobed.

pendent;

perianth globose to campanulate;

tepals distinct, white, narrowly elliptic, 3.5–6.5 × 1.2–3.5 cm, glossy, apex sharply acuminate;

filaments 1.7–3.3 cm;

pistil 2.5–3.8 × 0.4–0.8 cm;

style white, 6–18 mm;

stigmas lobed.

erect, capsular, dehiscent, ovoid to ellipsoid, rarely constricted, 4–7 × 1.8–2.5 cm, dehiscence septicidal.

erect, capsular, dehiscent, ovoid, rarely constricted, 3.5–7 × 2–2.5 cm, dehiscence septicidal.

dull black, thin, 6–8 mm diam.