Flora of North America species comparison

spreading or ascending, unbranched or few-branched distally, 20–80 cm.

sometimes with lateral branches arising obliquely from rosette, 20–70(–100) cm.

in a basal rosette and cauline, basal 4–8 × 2–5 cm, petiole (0.5–)1–3(–4) cm, blade oblanceolate to ovate, margins entire;

cauline 3–10(–13) × 1–2(–4) cm, petiole 0–0.5(–2) cm, blade lanceolate to ovate, abruptly narrowed to base, margins subentire or coarsely dentate.

in a basal rosette and cauline, basal 5–16 × 0.5–1.5 cm, cauline 2–12 × 0.5–2 cm;

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

bracts slightly longer than capsule they subtend.

erect, flowers in axils of distalmost few nodes.

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

opening near sunrise;

buds with free tips 1–3 mm, spreading;

floral tube 10–25 mm;

sepals 10–20 mm;

petals bright yellow, fading pale pink or pale yellow, 15–30 mm;

filaments 7–15 mm, anthers 4–8 mm, pollen 85–100% fertile;

style 10–20 mm, stigma exserted beyond anthers at anthesis.

2–several per spike opening per day near sunset;

buds erect, with free tips erect, 0.5–2 mm;

floral tube slightly curved upward to± straight, 15–40 mm;

sepals 6–13 mm;

petals yellow, broadly elliptic to rhombic-ovate, 5–16 mm;

filaments 4–18 mm, anthers 2–3.5 mm, pollen ca. 50% fertile;

style 20–40 mm, stigma surrounded by anthers at anthesis.

usually oblong-clavate to oblong-ellipsoid or ellipsoid, 4-angled or weakly 4-winged, (5–)10–15(–28) × 2–4(–5) mm, stipe (1–)3–5(–9) mm;

sessile.

narrowly lanceoloid, 10–20 ×2–3 mm.

1 × 0.5 mm.

brown, sometimes flecked with dark red spots, ellipsoid, 1–1.9 × 0.4–0.8 mm.

= 56.

= 14.