This little Cactus is a Echinocactus setispinus. The whole of the Cactaceae family has flowers which are large and showy in many genera, with dozens of petals and stamens rather than just the 5 or 10 of each as we might expect of a dicot. The Cactus family doesn’t fit neatly into the other predominant Orders within the Eudicots, instead it fits in the order Caryophyllales. There flowers form from tiny primordia deep within a stem covered with many tiny bracts or modified leaves. The outside of the flowering stem actually grows more than the inside leaving the ovary and points of attachment very deep within this stem…a unique structure.