Matucana madisoniorum , sometimes found listed as Submatucana, is an attractive small globular plant with ribs resembling Lophophora, the ones that lack spines look so much like peyote that the uninformed may think they actually are.
Pianta dal portamento compatto, con fusti globosi che si moltiplicano alla base. Produce fiori rosso intenso, zigomorfi e vistosi, che si susseguono in più ondate durante la bella stagione.
Globular body flattened at apex with ribs broken into hexagonal tubercles and many needle-like amber spines. The flowers are narrow, reddish-orange, slim-tubed, either straight or gently oblique, sometimes showing slight zygomorphy.
A white-flowered form of Matucana madisoniorum, featuring creamy blossoms. Solitary and spherical, with broad, flattened ribs like Lophophora. When spineless, it bears a striking resemblance to peyote, often misleading the uninformed.
Matucana paucicostata is a ribbed globular cactus often branching basally to form small clusters. It is one of the smallest Matucana species. Flowers are very showy, purplish to carmine red, funnel shaped, slightly curved (zygomorphic).
