Pixie Tangerines

I tried looking these up by their common name, Pixie Tangerine, and the search engine never heard of them. They are a small, virtually seedless, sweet tangerine that resulted from some sort of cross-breeding. I want to grow at least one tree in my yard if they do OK in northern California. I haven't been able to find any information. The ones I bought recently at Trader Joe's were grown in San Jose, CA, 10-20 miles south of me.

I have to say that the search engine on this web site (Dave's Garden) leaves a lot to be desired. I don't have a clue as to "family" or "genus" or "species" or whatever. Mostly all I know is a valid common name, and I never find what I want. Haven't found an answer even one time so far. (I've been a paying subscriber since July 2006.)

http://www.pixietangerine.com/ , http://cgi.ebay.com/DELICIOUS-DWARF-PIXIE-TANGERINE-CITRUS-TREE_W0QQitemZ150124012875QQihZ005QQcategoryZ42353QQcmdZViewItem
http://tribes.tribe.net/fruitgeekery/thread/fd8c3d7e-f0d5-47a4-a141-67c940fe4666
http://www.cacountry.tv/learnmore_story.cfm?id=8

http://www.growquest.com/Fruit%20trees%20-%20better%20plant/citrus_a_to_z.htm
http://www.newseasonsmarket.com/dynamicContent.aspx?loc=996&subloc=1&menuId=1005
http://www.ediblecommunities.com/pages/links.htm