Genus: 56 species.
Name: from Greek, flowering on the top.
English: Beehive cactus.
Taxonomy: Coryphantha was classified as Mammillaria in the past.
Region: Central America, Mexico, Arizona, New Mexico, western Texas,Montana.
Botany:
Botany: small to middle-sized, globose or columnar cactus; 4 characteristics:
1. stem without ribs, only tubercles.
2. flowers at the top, apex.
3. tip, podarium, has three parts, the spiny areole, the groove and the axil.
4. seed coat, testa, is net-like, reticulate.