People always talk about finding morels around Poplar,Hickory, Ash, Elm, Apple and Sycamores and yes these trees are great. Blacks are often found around wild cherry too. However, White pines will often host morels and I have found many nice yellows in pine straw. Also I find lots and lots of morels in Japanese Honeysuckle but they tend to only come up every other year for some reason.
Also I find a lot in dried wild grass reeds and in fresh green horse tail patches. You wont find those tips in any books that I have seen. For the past two years I have found over 100 per season in a small area in dried wild grass reeds (That;s what I am calling it because I am not sure what kind of dried weeds these are). These are the weeds that are about chest high that have stalks about the thickness of a pencil. Lots of times hunters walk these dried weed stalks to kick up rabbits when hunting. Just look around the edges of these weeds and yes they will grow in there right out in the sun nestled down at the bottom of the stalks of these weeds. There is not a host tree anywhere near these weeds so I only surmise the spores get blown in and do well for some reason.
P.S. TN you are making me hungry!!!