Trichocereus is a formerly recognized genus of cacti native to South America (Bolivia, northern Chile, Ecuador and Peru). , it was considered by Plants of the World Online to be a synonym of the genus Echinopsis.
Species Species previously placed in the genus Trichocereus include: Trichocereus macrogonus → Echinopsis macrogona Trichocereus spinibarbis → Echinopsis spinibarbis Trichocereus uyupampensis → Echinopsis uyupampensis
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