Adolescent Groot. Adult Groot, Baby Groot (potted), Infant Groot (Vol. 2), and Adolescent Groot (Vol. 2 credits scene & Infinity War). There is no "Toddler" or "Teen" Groot.
I found three out of four packs at a Walgreens last night (no Spidey/Hulk, so I'm hoping them & IM/Thanos are shared packs), and was met with the same resistance at the register. The Store Manager said "they must be recalled," to which I kept arguing that they were brand new, and the computer error is probably a street date thing, but not a "recall." But then she jumped to another register to get rid of the line forming behind me, and the Assistant Manager said "if they're out on the shelf, we have to sell them," and entered them manually for me. I haven't opened them yet, but I got the exclusives! Yay!