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.

segments easily detached to firmly attached, green, flattened, narrowly to broadly obovate, 3.5–9 × 2.5–5 cm, low tuberculate, glabrous;

areoles 4–6(–7) per diagonal row across midstem segment, oval, 3.5 × 2.5 mm;

wool white.

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.

in most areoles, straight, acicular, terete;

major spines 0–1 per areole, reflexed to porrect (rarely ascending), gray-white to brown, (15–)25–40(–60) mm; intermediate spines 0–3, reflexed, 12–20 mm;

minor spines 2–4, reflexed, yellow-gray, 3–6 mm.

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

loosely packed, in small tuft or crescent at adaxial margin of areole, yellowish, inconspicuous, to 4 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 throughout, 30–45 mm;

filaments white to red;

anthers yellow;

style 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.

rarely set, top-shaped to barrel-shaped, 15–20 × 15 mm, glabrous;

areoles 10–15, most bearing 3–12 spines or distal spines bearing 1–3 spines.

tan, 3.5–4.5 mm diam., thickish;

girdle protruding to 1 mm.

tan, large, 5–7 mm;

girdle protruding 1–1.5 mm.

= 66.