“E. colossus: cutting BBG # 66.0159 Ritter, Bolivia 2800 meters elevation. Equals T. colossus.
Seed collected off big, beautiful flowering plants at the BBG 1995-98. Older growth has one long two inch central spine, (shown in some pictures). All three of my rare plants at the BBG are now deceased but are now growing in my yard. Uncommon to rare in collections.“
- Bon Ressler 2021
This plant was assigned accession numbers JS133 in my collection.