Prunus yedoensis Matsum.

Prunus yedoensis 'Akebono'sakura. The lineage of Japanese cherries is confused with nearly every village (and neighborhood of cities) having its own cultivar. This is only to be expected given the length of time sakura have been cultivated and the special place they have in Japanese culture. It is also fitting that the Berkeley street tree in the photo grows in front of the house of a lovely Japanese woman, my sister-in-law.

10 Mar 2016I have been informed that this is not Prunus yedoensis 'Akebono'sakura. The closest match I can find in the list of Berkeley Street Trees is a flowering pear: Pyrus calleryana. Thanks to Wendy Cutler, the Flickr friend who corrected me. The tree grows in Berkeley, CA.