Flora of North America species comparison

segments not disarticulating, dark or bright shiny green, wrinkling when stressed, circular to broadly oblong to obovate, 5–17.5 × 4–12 cm, fleshy, usually tuberculate, glabrous;

areoles 4–6 per diagonal row across midstem segment, oval to circular, 2–4 mm diam., not raised, sometimes somewhat sunken;

wool tan to brown.

often absent or 1–2(–3) per areole, spreading, whitish to brownish, terete, straight, and usually stout, 25–60 mm; occasionally also 1 deflexed spine present.

3–6 per areole, in most areoles (rarely few spined), spreading, straight, angularly flattened, subulate;

abaxial 2–4 spines reflexed, shorter, to 20 mm;

adaxial 1–2 spines yellow or white chalky with brown basal portions, 25–50 mm.

in dense crescent of adaxial edge of areole and in dense tuft overtopping crescent in age, yellow to red-brown, to 4 mm.

in moderately dense crescent at adaxial edge of areole and subapical tuft, reddish brown, to 6 mm.

inner tepals pale to bright yellow throughout, 20–30 mm diam.;

filaments yellow to orange;

anthers pale yellow to cream;

style and stigma lobes white.

inner tepals yellow to deep pink, sometimes darker blush near base, to 50 mm;

filaments usually yellow or white;

anthers yellow;

style pink or white;

stigma lobes green.

greenish, tardily becoming apricot to brownish red, elongate, 30–50 × 12–20 mm, fleshy, tapering at base;

pulp green and sour, becoming reddish and sweet under ideal conditions;

areoles 10–18.

red-purple throughout, obovoid, 45–50 × 30–40 mm, juicy, glabrous, spineless;

areoles 24–30.

tan, 3.5–4.5 mm diam., thickish;

girdle protruding to 1 mm.

yellow-tan, 4–5.5 mm;

girdle protruding to 1 mm.

= 66.