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 not disarticulating, dark green, flattened, subcircular to broadly obovate, 16–25 × 16–19 cm, nearly smooth, glabrous;

areoles 8–10 per diagonal across midstem segment, prominent, subcircular, 4.5–5.5 mm, greatly enlarging to 10 mm diam.;

wool tan to gray.

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.

5–13 per areole, in most areoles, usually reflexed, translucent yellow, aging red-brown, angular, curved, subulate, the longest 20–25(–50) mm.

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

in rather dense crescent along adaxial margins, increasing in length toward base, subapical tuft poorly developed, tan, aging brown, to 6 mm.

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

filaments and anthers yellow;

style bright red;

stigma lobes yellow.

inner tepals yellow throughout, 25–40 mm;

filaments yellow to orange-yellow;

anthers yellow;

style red;

stigma lobes green or light green.

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

areoles 45–60, evenly distributed on fruit.

red to red-purple, pale yellow inside, with seed pulp red, subspheric to barrel-shaped, 37–60 × 30–45 mm, juicy, glabrous, spineless;

areoles 23–63.

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

girdle protruding to 1 mm.

gray-brown, subcircular to semicircular, 3.5–4 mm diam.;

girdle protruding to 0.4 mm.

= 88.

= 33 (an abnormal, polyhaploid individual), 66.