Flora of North America species comparison

unbranched or branched primarily distally, 25–70 cm.

usually well-branched distal to base, 50–400 cm.

in a basal rosette and cauline, basal 6–12 × 0.7–2 cm, cauline 2–10 ×0.5–3 cm;

subsessile;

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

bracts shorter than capsule they subtend, 0.5–1.7 cm.

in a basal rosette and cauline, 3–7 × 0.2–0.8 cm;

blade narrowly elliptic to elliptic or lanceolate, margins subentire or shallowly undulate-denticulate.

open, lax, usually unbranched, mature buds usually overtopping spike apex.

1–few per spike opening per day near sunset;

buds erect, with free tips erect, 1–3 mm;

floral tube nearly straight, 20–40 mm;

sepals 15–25 mm;

petals yellow, broadly elliptic to rhombic-ovate, 20–30 mm;

filaments 17–22 mm, anthers 4–7 mm, pollen 85–100% fertile;

style 50–65 mm, stigma usually exserted beyond anthers at anthesis.

4-merous, zygomorphic, opening at sunrise;

floral tube 4–13(–15) mm;

sepals 13–20 mm;

petals white, fading pink, rhombic-obovate, 10–17 mm;

filaments 8–17 mm, anthers 3–7 mm, pollen 90–100% fertile;

style 18–32 mm, stigma exserted beyond anthers at anthesis.

narrowly lanceoloid, 15–33 × 2–3 mm.

ellipsoid or ovoid, sharply 4-angled, 4.5–7 × 1.5–2.5 mm;

sessile.

dark brown, ellipsoid, 1–1.4 ×0.4–0.6 mm.

2–4, yellowish to reddish brown, 1.2–3 × 0.7–1.3 mm.

= 14.

= 14.