I suspect I may have written about mammillarias before, but I never get tired of their pretty little halos of flowers. And they are blooming now, so I will share them with you again. All varieties of mammillaria flower but don’t all produce the circle of flowers; however, most of them do. Most are in some shade of pink, but they come in other colors as well.
Mammillaria cacti are named that because of the nipple shape of their areoles, which is like a branch on a cactus, and the spines at the ends of the areoles are the cactus equivalent of leaves. The fat body of the plant would be its trunk. All of this evolved to help cactus survive in their usually harsh habitats.
But I digress; all that is another story. Right now just enjoy the flowers.