Flora of North America species comparison

segments green, broadly oblong to ovate to narrowly elliptic, (20–)4–60 × 2–3+ cm, low tuberculate;

areoles 7–11 per diagonal row across midstem segment, rhombic to subcircular, 2–4(–5) mm diam.;

wool brown.

segments easily detached when terminal, dark green, subspheric to subcylindric, to flattened and elliptic obovate, (1.5–)2–5.5 × (1–)1.5–3 cm, low tuberculate (pronounced when dried), glabrous;

areoles 3–5 per diagonal row across midstem segment, oval, 3 × 2.5 mm;

wool white.

1–6 per areole, absent or very highly reduced, or in marginal to nearly all areoles, erect to spreading, whitish, tan, or brown, setaceous only or setaceous and subulate, straight to slightly curved, basally angular-flattened, 1–10(–40) mm; 0–2 small bristlelike deflexed spines to 5 mm.

3–8 per areole, in most areoles spreading, gray with brown tips, straight, ± acicular, terete, the longest 8–24 mm; depressed spines at base of areoles 0–3, 1–3 mm.

along adaxial margin of areole and small, inconspicuous tuft, yellowish, aging brown, less than 2 mm.

in crescent at adaxial margin of areole, tan to brown, inconspicuous, to 3 mm.

inner tepals yellow to orange throughout, 25–50 mm;

filaments and anthers yellow;

style bright red;

stigma lobes yellow.

inner tepals yellow, sometimes basally red, 20–26 mm;

filaments white or red;

anthers yellow;

style white;

stigma lobes green.

yellow to orange to purple, 50–100 × 40–90 mm, fleshy to ± juicy, glabrous, usually spineless;

areoles 45–60, evenly distributed on fruit.

tan, 10–30 × 8–15 mm, dry, glabrous;

areoles 12–22, distal areoles bearing 1–6 short spines.

pale tan, subcircular, 4–5 mm diam., warped;

girdle protruding to 1 mm.

tan to gray, flattened, warped, oblong to subcircular, 5–6 mm diam.;

girdle protruding 1–1.5 mm.

= 88.

= 66.