Xerophyte

Seeds

Rather large, dull, black-pitted with a sub-basal hilum.

Description

It is a very large and very spiny barrel cactus with numerous ribs.This fascinating plant is known by Chileans under the name of "sandillon" and resembles in habit and fruit to some of the giant species of Echinocactus in Mexico.

Flowers

Red campanulate or funnel-shaped 5 cm long, from the apex of plant, with a white hairy floral tube. There might be over 50 flowers on a mature specimen (only mature specimens bloom). Ovary densely matted with matted wool.

Spines

Spines colour is variable yellow, amber yellow, fox red or almost black. Juvenile specimens have 1 central spine and 8 radial, but the number increase as they get older and areoles can have over 20 spines on mature specimens.

Ribs

Around 30-35 ribs

Stem

Spherical with abundant white wool on top up to 50 cm in diameter. Adult specimens become columnar, reaching over 90 cm in height.

Fruits

Oblong, becoming dry, dehiscing by a basal pore, very spiny above.