Description: The stem is a
bluish-green sphere that elongate with age, with white-woolly depressed
apex;. There are about 35 slender ribs with sharp, undulating edges,
depressed at 1.5 cm intervals where areoles appear.
Spines: There are about 10 to 25 bristle-like, silky, almost
transparent radial spines, 1 cm. long, whitish to cream-colored and
partially erect; from one to three may be missing from upper areoles.
The four central spines are much thicker, longer, and usually darker
yellow to tan coloured : they are straight except for the uppermost one,
which is may reach 5 cm of length, flat, and often curved backward.
Flowers: Small funnel-shaped 2 cm long with yellow (or whitish), lanceolate perianth segments.
Cultivation: Small growing and easy to to care
in normal and very drained
cactus compost and very willing to flower,
Because of it’s small size makes a
great potted plant specimen, great for beginning collectors, water
sparingly and allow to dry between watering, needs good drainage.
Watering should be curtailed during the winter months. Full sun but is
tolerant and prefers light shade during the hot Summer months. And
provide very good
ventilation. Frost Tolerance: does
not tolerate intense or prolonged cold (hardy to -5°C if kept dry
(usually) or by the shoots of adult plants.
Conspecific taxa, varieties, forms an cultivars: