Hybrids with gray-green to olive ribs (occasionally brownish or purple-tinged) and pale transverse bands. Flowers range from greenish-white to deep pink, with intermediate shades.
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.
Tephrocactus alexanderi is a small cactus with spherical or egg-shaped branches, covered with stiff spines and readily detached. The flowers are large pinkish-white.
Rare form with light creamy white spines instead of red. The color of the new spines can tend to pink or yellow but then the spines lighten as they mature.
Azureocereus hertlingianus (Browningia hertlingiana) also known as the “Blue Cereus” is a huge columnar cactus sought after by collectors because the juvenile specimens have a beautiful blue frosty covering. It one of the few really blue cacti.
