Where can I find a leaf search engine?

Answer 1

I'm assuming your question means that you're trying to identify a tree by its leaves? I don't know if these will help, since I don't know the geographic area, but if you're in the US (or nearby Canada or Mexico) you can try these:

http://www.arborday.org/trees/treeID.cfm
http://forestry.about.com/gi/dynamic/offsite.htm?zi=1/XJ&sdn=forestry&zu=http%3A%2F%2Fwww.cnr.vt.edu%2Fdendro%2Fdendrology%2F
http://www.enature.com/home/ - enter your zip code to find trees in your area

Otherwise, try googling "(your location) trees photos" or "(your location) tree identification" and you will get a list of websites that may be of more help.