Flora of North America species comparison

segments often easily dislodged, if terminal, green or purple, 5–13 × 1.8–3 cm;

tubercles prominent, broadly oval, 0.7–1.2(–1.5) cm;

areoles obdeltate to rhombic, 4.5–6 × 3–5 mm;

wool yellow, aging gray to black.

6–8 per areole (1–2 bristlelike spines) increasing with time, well distributed along stem, slightly interlacing with spines of adjacent areoles, short;

abaxial spines usually reflexed, whitish, pinkish to red-brown, lightly flattened, the longest 10–18 mm;

adaxial spines erect or spreading, rich red-brown, gray coated basally, subterete, 6–11 mm;

sheaths grayish, tipped brown or yellow to golden Glochids in small adaxial tuft or crescent, dark yellow, to 1 mm.

0–8(–13) per areole, sometimes with 1–3 bristlelike spines along areole margins at most areoles, usually slightly interlacing with spines of adjacent areoles, yellowish to tan, sometimes with pinkish hue, to red-brown and partially gray coated, aging brown-gray to gray;

major abaxial spines angular-flattened, usually reflexed, the longest to 30 mm;

major adaxial spines subterete, erect-divergent, the longest to 18 mm;

sheaths uniformly whitish or tipped yellow to gold, slightly baggy.

in inconspicuous adaxial crescent, yellow, to 1 mm.

inner tepals yellow-green, yellow to gold or bronze, or red to rose or magenta, spatulate, apiculate;

filaments yellowish green;

anthers yellow;

style whitish to pale bronze;

stigma lobes whitish.

inner tepals rose to magenta, spatulate, 18–25(–30) mm, emarginate-apiculate;

filaments deep rose;

anthers yellow;

style white, tinged red-purple distally;

stigma lobes white with hint of green.

often proliferating, yellowish green or tinged red to purple, often stipitate, obovate, 25–40 × 10–20 mm, leathery-fleshy, tuberculate or smooth, essentially spineless;

tubercles prominent, at first, subequal in length or proximal ones longer, fertile ones swelling and becoming smooth;

umbilicus to 9 mm deep;

areoles 20–30.

usually sterile, sometimes forming short chains, yellow-green to yellow, sometimes purplish, 25–45 × 15–22 mm, fleshy, tuberculate, spineless;

tubercles progressively longer toward fruit apex;

umbilicus 4–7 mm deep;

areoles 32–44.

yellowish, polygonal in outline, warped, 3.5–5.5 × 2.5–5 mm, sides nearly flattened with depressions and protrusions to angular subspheric;

girdle smooth or in a groove.

pale yellow, orbicular to angular or squarish in outline, flattened to warped, 3.5–4 × 3–4 mm, sides with 0–2 large depressions;

hilum sometimes pointed;

girdle smooth.

= 22.

= 22, 33.