Conservation status: Listed in
CITES appendix 2.
Origin: Catamarca, Argentina
Argentina is a land erupting in volcanic fire,
quickly changing to the glacial cold of the Andes. Nearby is the most
desert in the world, the desolate Puna de Atacama. Inhabitants must
be very rugged in order to tolerate such extremes in
Trichocereus grandiflorus is such a robust individual.
Remarks: The main
form of T. grandiflorus has red flowers in
summer, but forms with orange and yellow (T. huascha var.
macrantha) flowers are also found.
columnar species has been the subject for years of intensive
selective hybridization with
hybrids of Echinopsis. As a result hybrids (see:
Trichopsis) now flower in a vast array of colours, including yellow,
rose, crimson, orange, violet, white and even bicolour. Flowers can
attain 22cm in diameter, rivalling even the giant flowers of the
epiphytic "Orchid Cacti" (Epiphyllums). T. grandiflorus
hybrids in time form attractive columns that explode yearly in vivid
floral displays. Very few cacti can surpass the flowers of the T.
grandiflorus hybrids for sheer flower power.