Stems usually unbranched, usually pale green, depressed-spheric, spheric or short cylindric, (1-)4-8(-11) × 4-8 cm; ribs 13-16, tubercles often evident on ribs. Spines slightly or not obscuring stem; radial spines 5-10(-14) per areole, pale to white, 6-17(-20) mm; central spines (3-)4 per areole, terete to angled; abaxial central spine 1 per areole, white to tan with tan to black tips, hooked, 10-30(-44) × 0.5-1 mm; lateral adaxial spines 2 per areole, white or brown to reddish brown or black, 10-21(-35) × 0.8-1.5 mm; adaxial central spine white, flat to angled, 6-27(-35) × 5-15 mm. Flowers fragrant, funnelform to campanulate, sometimes narrowly so, (2-)3-4 × 2-4 cm; outer tepals with reddish brown midstripes and white to cream or pinkish margins, oblanceolate, 13-23 × 3-7 mm; inner tepals white to cream or pink, oblanceolate, 25-30 × 5-7 mm; filaments magenta; anthers yellow. Fruits irregularly dehiscent, ovoid, barrel-shaped, 9-15 × 7-12 mm, scales few or absent; ovary papillate, appearing granular. Seeds black, 2 × 3.5 mm, testa with rounded papillae.
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