mammillaria carmenae

Native to the semi-desert areas of Tamaulipas, Mexico, Mammillaria carmenae inhabits calcareous soils and friable rocks. This slow-growing, polycarpic species forms globose stems up to 10 cm diameter. It is notable within the genus for the density and arrangement of its yellow-cream spines. Globose stems 6-10 cm, covered with tubercles bearing spirally arranged spiny areoles. Radial spines thin, 10-15 mm long, yellow-cream colored, fading to paler shades seasonally.