Flora of North America species comparison

erect, branched or unbranched, 30–300 cm.

erect, usually green, rarely flushed with red, unbranched or with branches arising obliquely from rosette and secondary branches arising from main stem, 60–180 cm.

in a basal rosette and cauline, basal 3–7 × 0.5–2 cm, sessile, blade oblong to oblong-lanceolate, base usually ± auriculate, margins entire;

cauline 3–8(–10) × 0.4–1.8 cm, blade lanceolate to oblong-lanceolate, gradually smaller, becoming linear-subulate distally.

in a basal rosette and cauline, basal 10–30 × 2.5–5 cm, cauline 4–20 × 1–5 cm;

blade dull green, flat, narrowly oblanceolate, oblanceolate to narrowly elliptic, or narrowly lanceolate, margins bluntly dentate or subentire, teeth widely spaced;

bracts persistent.

long, wandlike, unbranched or branched.

erect, usually unbranched, rarely with few lateral branches.

4-merous, nearly actinomorphic, opening near sunrise;

floral tube 6–17 mm;

sepals 4–6 mm;

petals white, fading off-white or tinged pink, slightly unequal, rhombic, 4–6 mm, abruptly clawed;

filaments 5–8 mm, anthers 1.5–2 mm, pollen 85–100% fertile;

style 6–10, stigma exserted beyond anthers at anthesis.

opening near sunset;

buds erect, 7–12 mm diam., with free tips terminal, erect, 0.5–3 mm;

floral tube persistent on ovary after anthesis, (60–)80–120(–160) mm;

sepals yellowish green, red-striped to red throughout, 30–55 mm;

petals yellow, fading orange or pale yellow, very broadly obcordate, 40–50 mm;

filaments 23–30 mm, anthers 12–22 mm, pollen 90–100% fertile;

style 90–170(–200) mm, stigma exserted beyond anthers at anthesis.

ovoid, 4-angled, somewhat flattened, 3–4 × 1.5–2.3 mm, valves with raised midrib and conspicuous lateral veins;

sessile.

erect or slightly spreading, dull green or gray-green when dry, narrowly lanceoloid, 20–50 × 6–12 mm, free tips of valves 2.5–5 mm.

1, pale yellow, oblanceoloid, 2.4–2.6 × 1–1.5 mm.

1–1.2 × 0.7–1.3 mm.

= 14.

= 14.