claret cup References claret cup plant Ask Anything Homework Help Also known as: Echinocereus triglochidiatus Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: hedgehog cactusThe claret cup (E. triglochidiatus) ranges from north of Mexico City to northern Utah and southern Colorado. Read MoreThe claret cup (E. triglochidiatus) ranges from north of Mexico City to northern Utah and southern Colorado. Read More