Mammillaria longimamma f. crested

A rare cactus of an unusual shape, which, due to its cresting, makes each plant unique and therefore highly sought after by green collectors. Mammillaria longimamma f. crested has numerous conical tubercles of a bright green color, from which thin needle-like spines of a yellow-amber color emerge. In spring, lemon-yellow diurnal flowers bloom inbetween its tubercles.