About Pachycereus weberi (J.M.Coult.) Backeb.
Pachycereus weberi is a tree-like columnar cactus that can grow up to 11 meters tall. It has a moderately upright, candelabra-shaped growth habit, but this typical form only develops once the plant reaches 2 meters in height, when numerous branches grow from its main trunk. Its slightly waxy, bluish-green side shoots measure 12 to 20 centimeters in diameter, and have 8 to 10 ribs. White, felty areoles grow on these ribs, spaced 2 to 3 centimeters apart, and can be up to 5 centimeters apart. A single blackish, flattened central spine grows from each areole, reaching up to 10 centimeters long. This central spine is accompanied by 6 to 12 reddish-brown marginal spines that are 2 to 3 centimeters long. The white to yellow flowers of Pachycereus weberi open only at night, and are 8 to 10 centimeters long. Its ovary is rounded and covered in wool, while the flower tube is covered in scales and brown hairs. The edible fruits are 6 to 7 centimeters long, bear fine yellowish thorns, and have reddish-purple flesh. Pachycereus weberi is widespread in the Mexican states of Puebla, Guerrero, Morelos, Chihuahua and Oaxaca, where it grows at altitudes between 600 and 1500 meters.
