Appearance
It parasitizes two species of cactus, ''Echinopsis chiloensis'' and ''Eulychnia acida'', and in its adult form shows only its flowers and its fruits, bursting forth spectacularly from the columnar cacti which are its hosts. Mauseth discusses the morphological/anatomical effects of ''T. aphyllus'' on the cactus ''Echinopsis chiloensis''.References:
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