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When a gardener orders pizza

When a gardener orders pizza, she is delighted to find some of her favorite toppings on the menu -- Brassica oleracea, Solanum lycopersicum (which she used to know as Lycopersicum esculentum), and a new one, Cynara cardunculus.

When she orders, the gardener translates these toppings for the waiter as broccoli, tomatoes, and artichokes because she doesn't want to embarrass him if he doesn't know