Its easy to tell the difference between good and bad quality ganja. I hope you don't mean strains though, you really can't tell what strain it is by just looking. I mean, the bud usually looks about the same, but really its just too hard to be accurate, you'd have to see the plants and know a bit about them.

Better quality stuff is generally better manicured. That is a great way to tell right off the bat how good it is. Also its more sticky, hairs are a good indication, tiny crystals, and an overall good-quality look.

Dank - http://media.urbandictionary.com/ima...dank-49097.jpg

Dank - http://media.urbandictionary.com/ima...dank-49097.jpg

Some uber schwag - http://www.sixthseal.com/images/cana...ysian_weed.jpg

There might not always be a difference, but one thing to notice is that regs are often compressed more, and kinda flat, instead of a nicely shaped nugget.
Frivolous248 Reviewed by Frivolous248 on . HELP MEEEE all weed seems the same to me. How do i identify different weeds. alot of them smell the same to me and shit and taste the same... Rating: 5