I came across this
interesting video posted by UCTV Seminars on November 3, 2011 on the subject of honey varieties. It is a lecture given by Eric Mussen of the Department of Entomology at UC Davis. He is very knowledgeable on this subject. In his lecture he discusses a number of honey varieties produced in California, including almond honey, cotton honey, sunflower, eucalyptus, and fireweed among others. There is also an interesting discussion of honey imports from China and honeydew -- which is made when bees collect the sweet secretions of other insects.