Flora of North America species comparison

diffuse.

segments curved and narrowed at base, 10–15 × 2.5–4 cm;

tubercles prominent, 20–30 mm, narrow, 4–6 times longer than wide, obscured by interlacing spines;

areoles 5–6 mm in diam.;

wool gray-white.

17–27 per areole, ± uniformly distributed along stems;

major 4–6 abaxial spines deflexed, tan with whitish margins, strongly flattened, longest to 4.5 cm;

major 4–5 adaxial spines divergent, tan to reddish tan, angled at base, longest subterete, to 5 cm.

few in adaxial portion of areole, yellow, 5–6 mm.

inner tepals yellow to pale yellow-green, to 15–20 mm;

filaments white;

style light green to white;

stigma lobes white.

sometimes proliferating, lemon yellow to yellow, 40–75 × 15–40 mm, fleshy, very spiny, glochidiate;

spines (4–)6–17 per areole, straw yellow to brown, 12–20 mm, retrorsely barbed;

areoles (40–)45–70.

yellowish white, 4–5 ×3.5–4.5 mm, smooth.

= 44.