Carrots
carrots were an orange vegetable native to Earth.
One of the principal historical events on Earth of 1987 was the cloning of computers from carrots. (Star Trek IV: The Voyage Home)
Commander Charles Tucker III was fond of carrots, even if they had not been peeled. (ENT: "These Are the Voyages...")
Commander Chakotay hated carrots. In 2374, Kellin noted that his reaction when Neelix served him buttered carrots was "very diplomatic". (VOY: "Unforgettable")
In 2376, Naomi Wildman planned to use carrots and celery to build a tetragon, an assignment given to her by Seven of Nine. (VOY: "Memorial")