No, a strawberry is not a citrus fruit.
Strawberries are classified as aggregate accessory fruits, meaning they develop from the receptacle of the flower rather than the ovary. Citrus fruits, on the other hand, belong to the Rutaceae family and are characterized by their leathery rind and juicy pulp, like oranges, lemons, and grapefruits. Strawberries are considered non-citrus fruits. The reference you provided even classifies strawberries as "non-citrus fruit."
