Trichocereus.net Cactus Seeds and Database — Trichocereus Species — Trichocereus santaensis / Echinopsis santaensis descriptions — Trichocereus santaensis Echinopsis santaensis Rio Santa Riley FlattenTrichocereus santaensis Echinopsis santaensis Rio Santa Riley FlattenA photo of Trichocereus santaensis at the original site beside the Rio Santa in Peru