Anadenanthera colubrina symbols appear abundantly in the imagery on the Late SAIS Tiwanaku Phase 5 Taquiri Cube. Phase 5 in the Agüero et al. seriation (2003) also includes the Gate of the Sun-with its single location for A. colubrina and the Llojeta Block, apparently lacking the symbol (illustration based on Ryden 1947:357, Figure 147).
Isbell, William H.; Uribe, Mauricio I.; Tiballi, Anne; Edward P. Zegarra, 2018, "Visual database", https://doi.org/10.25346/S6/1B33FN.