| 词源 |
navel orange. The first navel orange was a “bud-sport” that originated for reasons unknown from the bud of an otherwise normal orange tree in a monastery garden in Bahia, Brazil, from where it was imported into the U.S. in 1870. This sweet, usually seedless orange takes its name from the depression in its rind resembling a human navel, which contains an aborted ovary that appears as a small secondary fruit within the fruit. Many other varieties, however, exhibit this characteristic at times. See don’t know him from adam. |