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Echinocereus waldeisii 4/21/22
There were several species in Wilcoxia. These have slender stems and tuberous roots. Someone decided that based on flower structure, they belong in Echinocereus. No argument from me. Then some super-lumper came along and decided that all the former Wilcoxias are really one species - Echinocereus poselgeri. Nuts, say I. (30/40)