Flora of North America species comparison

erect, green or red on proximal parts or throughout, mostly branched from base or only in distal 1/2, 30–150 cm.

erect, usually flushed with red proximally, sometimes green or red throughout, unbranched or with branches obliquely arising from rosette and secondary branches arising from main stem, 50–200 cm.

in a basal rosette and cauline, basal 10–30 × 1–4 cm, cauline 4–18 × 1–3 cm;

blade usually bright green, sometimes pale green distally, white- or red-veined, narrowly oblanceolate, narrowly elliptic to lanceolate, or oblong, margins usually flat, rarely undulate, regularly dentate to remotely denticulate, sometimes teeth widely spaced;

bracts persistent.

in a basal rosette and cauline, basal 10–30 × 1.2–4(–5) cm, cauline 5–20 × 1–2.5(–4) cm;

blade dull green or grayish green, narrowly oblanceolate, oblanceolate to narrowly elliptic, or narrowly lanceolate, margins flat or undulate, dentate to subentire, teeth sometimes widely spaced, sometimes sinuate-dentate proximally;

bracts persistent.

erect or ± curved, unbranched or with secondary branches just proximal to main one.

dense to open, erect, unbranched.

opening near sunset;

buds erect, 3–5 mm diam., with free tips subterminal, spreading to erect, 0.5–5 mm;

floral tube 22–40 mm;

sepals green to yellowish green or flushed with red or dark red, sometimes only red-flecked, 7–17 mm;

petals yellow to pale yellow, fading pale yellow to pale yellowish orange, very broadly obcordate, 8–15(–20) mm;

filaments 7–13 mm, anthers 3.5–6 mm, pollen ca. 50% fertile;

style 25–50 mm, stigma surrounded by anthers at anthesis.

opening near sunset;

buds erect, 3–5 mm diam., with free tips terminal, erect, 0.5–3 mm;

floral tube 23–44 mm;

sepals green to yellowish green, red-striped, or flushed with red, 9–18 mm;

petals yellow to pale yellow, fading orange or pale yellow, very broadly obcordate, 7–20 mm;

filaments 7–15 mm, anthers 4–10 mm, pollen ca. 50% fertile;

style 30–55 mm, stigma surrounded by anthers at anthesis.

erect or slightly spreading, usually greenish black when dry, narrowly lanceoloid to lanceoloid, 20–40 ×3.5–5 mm, free tips of valves 1–1.5 mm.

erect or slightly spreading, dull green or gray-green when dry, lanceoloid, 20–43 × 4–7 mm, free tips of valves 1–2 mm.

1.1–1.8 × 0.5–1 mm.

1–2 × 0.5–1.2 mm.

= 14.