Large, columnar, ribbed stem to 60 feet high and 2 feet thick, ribs 12-30; spines 20-25, gray, needle-shaped to awl-shaped, 1/2 to 3 inches long, yellow in upper areoles; flowers white, to 5 inches long, closing next afternoon; fruit oblong, red, to 3 inches in diameter, edible. Spring and summer.
This is the largest member of the Cactaceae and can reach 12 tons in weight and alleged to live more than 200 years. Pollinated by birds and insects by day, bats by night.
Sometimes transplanted from the wild but not thriving in cultivation.
Hortus Third, LH Bailey Hortorium, 1976 Botanica, Turner & Wasson, 1997, CD-ROM Version
data regenerated on Fri, 23 Feb 2018 15:23:53 -0500