Xerophyte

Central Spines

3 short in the upper part of the areoles, lanceolate, straight or recurved 1-3 cm long, somewhat anulate, reddish to amber coloured (sometime with a darker tip) that becomes whitish as they ages. The upper one is very flat and sometime three-toothed at apex.

Description

Habit

Flowers

Abundant up to 1,5 cm long, cream or yellowish-white often with darker reddish or brownish throat. Scales on the ovary ovate.

Spines

Typically 5.

Ribs

Numerous,25-40(-55) wavy, thin .

Stem

Round to shortly cylindrical, apex flat or slightly depressed, up to 10 cm in diameter (but usually smaller) the epidermis is dark bluish-green. Older plants sometimes get corky near the base.

Radial Spines

2 (occasionally more), appressed, in the bottom of the areole, awl shaped pointing downward, much shorter than the upper ones, up to 1 cm long.

Fruits

Greenish, small.

Areoles

Well spaded (only 1 or 2 per ribs) Initially woolly, afterwards naked.