Known as Wilcoxia.
Native to the Southern United States and Mexico there are about 70 species in the family. They are ribbed, bushy, globular and usually small to medium-sized cylindrical cacti with tight spines which are often colorful and decorative. The flowers range to electric pink to deep scarlet to translucent browns, greens, bright yellow and even two-toned. Best suited to pots because of their size. Like filtered sun to full sun and require well-drained soil. The soil can be lightly richer than other cacti and kept almost dry in winter,