Trichocereus.net Cactus Seeds and Database — Trichocereus Species — Trichocereus knuthianus (Echinopsis knuthiana) — post-13830-0-46545100-1399193851post-13830-0-46545100-1399193851 EG December 3, 2014 No CommentsGet Exclusive Content, Videos and Amazing Cactus Stock Photos by Supporting me on PatreonAbout The Author EG