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.

absent or vestigial, yellow.

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

few, scattered, poorly developed, yellow, aging gray to blackish, to 1.5 mm, covered by white, cottony wool.

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 brilliant yellow throughout, fading orange to red, 25–30 mm;

filaments white to green;

anthers yellow;

style white;

stigma lobes bright light 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.

pink- to red-purple with red pulp, pyriform, 30 × 25 mm, fleshy, glabrous, spineless;

areoles 18–25, usually crowded near apex, long, white woolly.

tan, 3.5–4.5 mm diam., thickish;

girdle protruding to 1 mm.

tan, subcircular, 2 mm diam.;

girdle broad, projecting 0.5 mm.

= 22.