Mammillaria riteriana

Mammillaria riterianaOrigin and habitat: Highlands of central Mexico . This is an attractive globose pincushion cactus simple or rarely proliferous, sometimes 10 cm in diameter and typically wrapped on the upper part with a dense snow white wool, so that only the tips of the tubercles visible. Each head is surrounded by a complete ring of star like pink flowers. Even without flowers it is an extremely attractive plant, and one of the most beautiful mammillarias. Young

Origin and habitat: Highlands of central Mexico .

This is an attractive globose pincushion cactus simple or rarely proliferous, sometimes 10 cm in diameter and typically wrapped on the upper part with a dense snow-white wool, so that only the tips of the tubercles visible. Each head is surrounded by a complete ring of star-like pink flowers. Even without flowers it is an extremely attractive plant, and one of the most beautiful mammillarias. Young plants start producing their wool only when they reach the flowering stage. There are several similar looking Mammillarias but far from being so woolly like the real "chionocephala".

Blooming season: Spring.

It is easy to cultivate and make interesting specimens for any collection, and over time (in 12-15 years) it may form colonies up to 50 cm or more in diameter, and doesn't require any special treatment.

Some of the information in this description has been found at desert-tropicals.com, llifle.com and cactus-art.biz