Flora of North America species comparison

segments whorled or subwhorled, gray-green, often drying blackish, ± spiny throughout, terminal ones easily dislodged, 6–16(–23) × 2–3.5 cm;

tubercles salient, broadly oval, 0.8–1.3(–1.9) cm;

areoles obdeltate, 5–7(–10) × 2.5–4 mm;

wool gold to tan, aging gray to black.

0–12(–18) per areole, at most areoles to nearly absent, yellowish, sometimes also pale pinkish, aging brown, interlaced or not with spines of adjacent areoles;

abaxial spines erect to deflexed, spreading, flattened basally, the longest to 3.5 cm;

adaxial spines erect or spreading, terete to subterete, longest to 2.5 cm;

sheaths uniformly whitish, yellowish to golden, baggy.

(0–)1–4 per areole, in all but proximal areoles of stem segment, usually all deflexed, yellow with whitish to pinkish basal coating, moderately stout to acicular, the longest 1.5–2.8 cm;

sheaths whitish at bases to golden at tips.

in adaxial tuft, sometimes also scattered along areole margins, yellow, 1–3 mm.

in adaxial tuft and marginal about areole, yellow, 1–3 mm.

inner tepals usually reflexed, pink to magenta, obovate to ligulate, 12–16 mm, apiculate emarginate;

filaments pale pink to magenta;

anthers white to cream;

style pinkish;

stigma lobes whitish to pale yellow.

inner tepals greenish bronze or red to magenta, spatulate- to obovate-apiculate, 10–15 mm;

filaments reddish;

anthers light yellow;

color of style and stigma lobes unknown.

proliferating, forming long, branching, pendent chains, at maturity gray-green, often stipitate, obconic, fleshy, shallowly tuberculate, usually spineless;

basal fruits 32–55 × 23–45 mm;

terminal fruits 2–3.3 × 1.3–2.3 cm;

tubercles becoming obscure;

umbilicus to 8 mm deep;

areoles 18–35.

commonly sterile, often proliferating, green, becoming yellow with red blush to red, obconic to obovate-stipitate, 15–23 × 10–20 mm, fleshy, moderately tuberculate;

umbilicus deep, 3–4.5 mm;

areoles 10–18, a few producing 1(–2) short spines.

pale yellow to brownish, angular to very irregular in outline, warped, 1.9 × 1.5–3.5 mm, sides with 1–2 large depressions, hilum pointed;

girdle smooth.

tan, angularly subcircular to broadly oval, warped, 3–4 × 3–3.5 mm;

girdle broad, lumpy, little protruding.

= 22.