Claire again wrote today’s entry:
Pachycereus weberi is known as candelabro, or Cardón Espinoso (the common name being an obvious reference to the resemblance of plants to candelabras). Its distribution ranges across desert scrub and deciduous forests of the southwestern Mexican states of Guererro, Puebla and Oaxaca. The genus has a native range of southern Arizona to Central America, and also includes the tallest cactus species, Pachycereus pringlei (an individual grew to 19.2m/63ft). In Pachycereus weberi, plants “only” reach approximately 10m tall and as nearly as wide.
Pachycereus weberi only produces white or yellow flowers. These bloom at night, with bats being the pollinators (as is common in the genus). The edible fruit has spines which dehisce when the fruit matures, possibly a mechanism to prevent eating of the unripe fruit. These spines (modified leaves), extend from the thick stem in a beautiful pattern (see some close-ups via Google Image Search). The seeds of the ripe fruit of Pachycereus weberi can be harvested and ground into a flour.