Flora of North America species comparison

12–25(–30) per areole, gold to pale brown, aging dark brown, longest to 3 cm;

sheaths translucent yellow to pale brown.

in adaxial tuft and scattered along margin, yellow to pale brown, of irregular lengths.

inner tepals yellow-green suffused with bronze, pale red, or purple-brown, 20–35 mm;

filaments dark bronze-red to magenta;

anthers yellow, sometimes sterile;

style rose-pink (at least distally);

stigma lobes cream.

grayish tan, 25–30 × 15–30 mm, dry, tuberculate, densely spiny;

tubercles prominent, subequal or basal ones longest;

areoles 24–32.

rare, tan, circular, flattened, 5–6 mm diam., with 1–2 shallow depressions;

girdle smooth.

= 66.