Flora of North America species comparison

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.

6–12 per areole, in all but proximalmost areoles, spreading, usually deflexed in abaxial ones, pale red-brown to dark brown, acicular, the longest to 2 cm;

sheaths pale yellow-brown, shiny.

in adaxial crescent and few along margin of areole, yellow to brown, 0.5–2.5 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, to 20 mm;

filaments yellow-green to distally tinted pink to magenta;

anthers yellow, sometimes bearing stigma-tipped, stylelike appendages;

style greenish yellow to often pink distally;

stigma lobes yellow to white.

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, often proliferating into short erect chains of 2–5 fruits, green, broadly ovoid to top-shaped, 21–25(–35) × 20–32 mm, fleshy, smooth to shallowly tuberculate, spineless;

umbilicus broadly shallow, 5–7 mm deep;

areoles (20–)25–35.

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.

rare, globose;

girdle smooth.

= 22.

= 22, usually 33.