Originated at the Citrus Research Center in Riverside in 1916 as a seedling from a fallen fruit that was presumed to have come from a Washington navel tree. The seedling was selected, described and named by H. B. Frost based on the Esperanto word for “found” in 1928 and was released in 1935. Believed to a seedling from a navel orange fruit but does not have a navel and juice does not turn bitter rapidly. A decent sized sweet with good color and flavor, but seedy. The fruit of Trovita are earlier maturing, smaller, juicier and milder in flavor than Washington navel. The trees are vigorous and uprights in growth but have a tendency to alternate bear. Trovita trees are more productive under desert conditions.