It is very hard to tell what type of strain you have from just the bud. With the thousands of strains out there it is close to impossible to judge it correctly. Some buds may look super, with tons of tricomes, and then they will turn out be a disappointing smoke. Others can look like crap and then be badass smoking product! The best way to judge any bud is by smoking a little to start and testing out the high. I will always buy just a gram to test, before I make any further purchases, and find out what your dealer knows about the particular strain. They most likely won't know shit, but it's always worth a try. RollItUp is right about the hair color. The early harvested plants will have less amber-orange hairs and more pure THC. As the plant goes through it's peak harvest time the THC is breaking down into CBD and CBN. These are what add the hazey, narcotic feel to a high. The less CBD and CBN the clearer and headier the high will be.