Xerophyte

Central Spines

Flattened, whitish to yellowish with brown tips,ferocious-looking with one very long (from 1 to 8 cm long) directed upwards.

Flowers

Tubular to funnel shaped, 3,5-4 cm long, tepals linear to linear lanceolate, acute white to pink with a dark purple midrib. Stigma lobes 5-8, linear, yellow. Tube short and scaly.

Ribs

± 25-35, Thin, strongly flattened with very undulated or curled ridges.

Stem

Subglobose to sortly cylindrical, olive green, up to 20 cm tall, 8-10 cm wide. Apex usually slightly depressed.

Radial Spines

5(-6) about 1 cm long.

Areoles

Roundish, remote (only 1 to 3 per ribs), woolly when young.