Stems unbranched (2-3-branched), light green, depressed hemispheric to ovoid or cylindric, 4-15 × 3-15 cm; ribs (11-)13-14, tubercles prominent on ribs. Spines not obscuring stems; radial spines (6-)8-11(-16) per areole, spreading, white or with dark tips, 4-35 × 0.3-1 mm; central spines (0-)4(-6) per areole; abaxial central spines 1(-3) per areole, tan, brown, reddish, or black, usually hooked, terete to angled, 10-55 mm; lateral spines usually (0-)2(-4) per areole, white, tan, red or reddish brown, usually hooked, except on some older areoles, 10-30 mm; adaxial spines 1 per areole, tipped white or dark, flattened, 5-25(-60) × 0.5-1(-2.2) mm. Flowers tubular, funnelform to campanulate, 2-4 × 2-4 cm; outer tepals with pink to yellowish brown, greenish brown or reddish brown midstripes and cream, yellow, pink, or reddish purple margins, usually oblanceolate, 10-20 × 4-8 mm, margins entire to irregularly toothed; inner tepals cream with yellow, greenish, reddish purple, lavender or brownish midstripes and lighter margins, oblanceolate to narrowly oblanceolate, 15-25 × 4-8 mm, margins entire to minutely toothed apically; filaments cream, yellow, green, red-violet, or pink; anthers yellow; styles minutely and sparsely papillate. Fruits dehiscent along 2-4 vertical slits, green or pink, barrel-shaped, 9-12 × 8-10 mm, dry; scales few, membranous, scarious-margined. Seeds black, 2.5-4 × 2-2.9 mm; testa with rounded papillae.
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