UCD

University of California, Davis: Fig varieties and/or strains considered to be from UCD often contain the UCD suffix. For example, Black Madeira (UCD). However, this is something of a misnomer, and not technically correct, since UCD does not actually have any fig trees. A plot of the UCD Wolfskill Experimental Orchard is leased to the USDA, which actually maintains its fig genetics repository there. So some have started replacing the UCD suffix with the more technically accurate USDA suffix. In the case of these identifying suffixes, they have become de facto synonyms.