👉 Sphaerotheca is a genus of flowering plants in the family Asteraceae. It is a group of about 20 species, which are native to South America and North Africa. The specific name "sphaero" comes from the Greek word "spheros", meaning spherical or round, and "theta", meaning angle. Sphaerothecas are characterized by their large, deeply branched leaves, a unique flower that is shaped like a star (or "star