Claret cup may refer to:

Plants

• Echinocereus triglochidiatus, a cactus species that goes by the common name claret-cup cactus
• Echinocereus coccineus, sometimes called Mexican claret cup
• Magnolia sprengeri, sometimes called claret-cup magnolia
• Claret cup irises, cultivars of Iris sibirica
• Claret cup fuchsia, a cultivated variety with large semidouble flowers and a trailing habit

Drinking

• Claret cup (beverage), a wine cocktail popular in the 19th century
• a cup of claret, a kind of Bordeaux wine, sometimes served in specialized claret glasses

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