> ⚙️ **Auto-generated, pending human review.** This page was compiled automatically by a bot from community discussions and has **not yet been verified by an editor**; details may be imperfect and corrections are welcome. //Editors: delete this line once you have reviewed the page.// ====== trichocereus knuthianus ====== ===== Description ===== Based on cultivated specimens, this taxon features a distinctly blue (glaucous) epidermis. The ribs are notably notched, and the areoles bear prominent, sharp spines ("spikey"). ===== History & Origin ===== The exact origin, breeder, or collection history of this specific clone remains undocumented in the provided records. While *Trichocereus knuthianus* is recognized at the species level, community members note that information regarding specific named varieties or clonal lineages of this taxon is highly limited. ===== Cultivation Notes ===== This clone requires standard *Trichocereus* cultivation conditions, emphasizing well-draining soil and careful watering. Cultivators have reported susceptibility to rot under adverse conditions, suggesting that moisture levels should be monitored closely to prevent loss. ===== Community Discussion & Citations ===== //Analysis of the discussion.// ^ Date ^ Speaker ^ Confidence Score ^ Key Insight/Quote ^ | 2025 (approx) | Ryan Smith | 7 | "Mine is blue, notchy and spikey. I almost lost it to rot a while back so I can't show you how nice it was but it was one of my favorites" | ===== Credibility Notes ===== Ryan Smith was assigned a confidence score of 7 due to providing specific, firsthand morphological descriptions (color, rib shape, spination) and practical cultivation feedback regarding rot susceptibility. Other participants did not provide actionable data or specific details about the clone.