My Coryphantha elephantidens

    Native to Mexico and the southern United States, Coryphantha includes 43 species and several subspecies of small globular cacti. Related to Mammillarias, they are also characterized by tubercules rather than ribs. The tubercules on mature plants have a groove in the top which is one tell tale sign it's not a Mammillaria. Also, unlike Mammillarias, Coryphantas flower from the top of the plant on the new growth whereas Mammillarias flower in a ring around the top in the previous years growth. In fact the name of this Genus is from the Greek "koryphe" for summit and "anthos" for flower, roughly translating to "Flowering from the top". Coryphantha flowers can be quite large, as much as 4 inches around, and are usually yellow, white or pink. Coryphantas are slow growing cacti and can take up to ten years to flower. The groove in the tubercules is usually a sign that the plant is of flowering age.
    Coryphanthas should be grown in a fast draining rich mix depending on species and watered moderately through the growing season. In winter water sparingly and keep the plant dry. They are prone to rot at this time. They like light shade to full sun. Coryphanthas can be propagated by seed or with some mature specimens offsets that grow from the sides of the plant.

I have several Coryphanthas in my collection. Click the pics below.

Coryphantha elephantidens

Coryphantha macromeris

Coryphantha cornifera

Coryphantha compacta

Coryphantha ramillosa

Coryphantha retusa
All images and text are copyright 2005-Present, D.S. Franges, unless otherwise noted.