Trichocereus nigripilis / Trichocereus spinibarbis (Echinopsis) Trichocereus nigripilis / Trichocereus spinibarbis is a Chilean Trichocereus species. There is a lot of confusion surrounding the name. According to Ritter, the plant was synonymous with a plant called Cereus spinibarbis Otto, which is why he described it as Trichocereus spinibarbis. These days, Trichocereus nigripilis is not an…
