Which popular cocktail is named after a flower?

A mimosa cocktail is composed of champagne (or other sparkling wine) and chilled citrus juice, usually orange juice unless otherwise specified. It is traditionally served in a tall champagne flute at brunch, at weddings, or as part of business or first class service on some passenger railways and airlines. The mixing ratio of the "classic mimosa" differs based on the source.

The cocktail is named after the yellow-flowered mimosa plant, 'Acacia dealbata'.

Like most classic cocktails and many popular American dishes, there are a lot of legends regarding the true origins of the mimosa. A drink called Buck’s Fizz was invented in 1921 at the Buck’s Club in London. This drink is also made with champagne and orange juice, but with a larger quantity of the wine. It is believed that four years later, in 1925, a bartender at the Ritz Hotel in Paris named Frank Meier invented the mimosa, which uses equal parts sparkling wine and juice.

There is even one story that says director Alfred Hitchcock invented the mimosa in San Francisco in the 1940’s. According to The Oxford Companion to American Food and Drink, the mimosa is merely a variation of the Buck’s Fizz, but it does suggest that perhaps Hitchcock was the one to popularize it as a brunch drink in this country.