Xerophyte

Habit

It is a small solitary cactus.

Central Spines

0-2 very similar to the radials.

Flowers

Infundibuliform in the nearest periphery just around the apex 45-60(-80) mm long, 60-65 in diameter. Tepals ivory white with a brownish mid rib or occasionally reddish, throat greenish with a basal reddish area. Style white-greenish, stigma white. Anthers cream coloured.

Ribs

10-16 straight, divided in well distinct angular ribs.

Stem

Deep glaucous-green, dark olive green to grey-black, discoidal that became elongate with time 10-25 cm tall, up to 12 cm in diameter, the apex is slightly woolly. This stem tends to become rather greener with age especially if grown somewhat shaded.

Radial Spines

5 to 7 or more, less 20-25 mm long mm long slightly bent against the plants body, fairly stout, blackish, becoming whitish-grey with a black base as they age.

Fruits

Globate or fusiform, 20-40 mm long green with white bordered scales.

Areoles

Greyish, elongate.