Flora of North America species comparison

sometimes with lateral branches arising obliquely from rosette, 30–100(–150) cm.

weakly erect to ascending, many from base, forming clumps 1–1.5 m diam., often branched distally, 30–60 cm.

in a basal rosette and cauline, basal 6–20 × 0.6–2 cm, cauline 3–15 × 0.8–2.5 cm;

blade narrowly oblanceolate, gradually narrowly elliptic to narrowly lanceolate, oblanceolate, or ovate distally, margins lobed to remotely dentate or subentire;

bracts slightly longer than capsule they subtend.

in a weakly developed basal rosette and cauline, basal 9–23 × 1–2.5 cm, cauline 5–11 × 1.5–3.5 cm;

petiole 0.5–1.5 cm;

blade very narrowly oblanceolate to narrowly elliptic, margins undulate, remotely and bluntly dentate.

dense, usually without lateral branches, mature buds usually not overtopping spike apex.

2–several per spike opening per day near sunset;

buds erect, with free tips erect, 0.5–3 mm;

floral tube slightly curved upward to ± straight, 30–45 mm;

sepals 15–30 mm;

petals yellow, broadly elliptic to rhombic-elliptic, 15–35 mm;

filaments 13–25 mm, anthers 3–8 mm, pollen 85–100% fertile;

style 25–50 mm, stigma exserted beyond anthers at anthesis.

opening near sunset, not strongly scented;

buds with free tips terminal, erect, 3–10 mm;

floral tube straight, 100–165(–190) mm;

sepals 25–50 mm;

petals yellow, fading deep reddish orange, broadly obovate with truncate apex, or obcordate, 30–55 mm;

filaments 18–35 mm, anthers 10–19 mm;

style 140–235 mm, stigma exserted beyond anthers at anthesis.

narrowly lanceoloid, 13–25 × 2.5–3 mm.

erect to slightly spreading at acute angle from stem, cylindrical, 25–35 ×4–5.5 mm, dehiscent at least 3/4 their length.

brown, sometimes flecked with dark red spots, ellipsoid, 1–1.7 × 0.4–0.7 mm.

numerous, in 2 distinct rows per locule, dark reddish brown, sometimes with darker flecks, obovoid, asymmetrical, irregularly angled, 1.5–2.1 × 1–1.2 mm, surface irregularly pitted and with collapsed papillae.

= 14.

= 14.