Notocactus elegans

Notocactus is a genus of about 25 species of South American cacti from low elevations of Argentina, Paraguay, Uruguay, and Southern Brazil. They are grown for their spine formations, as well as for their attractive flowers. The genus name comes from the Greek for "cactus from the south". It has now been merged with Parodia. Since the name Parodia was used before Notocactus, it has precedence and all the Notocactus became Parodia. Notocactus are almost always globose, elongating as they age, some species eventually reach 3 feet (90 cm). They are often solitary, rarely offsetting. Their flowers are funnel or bell shaped, yellow. They come in groups of 3 or 4 at several times during the year. Each flower lasts around a week. Some of the information in this description has been found at desert-tropicals.com, llifle.com and cactus-art.biz