Pachycereus weberi is a columnar cactus plant native to Mexico.

Pachycereus weberi is a columnar cactus that grows strongly tree-like and can reach heights of up to 11 meters.

However, this typical growth form is only achieved by the plant when it reaches a height of two meters, where numerous branches of the main trunk arise.

The white to yellow flowers, which only open at night, are 8 to 10 centimeters long.

[3] The specific epithet weberi honors the physician and botanist Frédéric Albert Constantin Weber.