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.
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.
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).
Matucana currundayensis is a local form of the widespread and variable Matucana aurantiaca found in the Cerro Currunday, La Libertad, Peru (hence the name). The stems are globular about 10 cm in diameter light green. The spines are yellowhis to orangish.
