you need headbutt from the guy in azalea forest the headbutt the little trees till you find one HINT certin trees have diffrent Pokemon
the Pokemon you get from trees are: aipom, herracross, burmy, munchlax, wurmple, combee and cherubi.
no he does not evolve in Pokemon hg or ss
In Pokemon Crystal.
What the hell is a Pokemon crystal
You can't find Charizard in Pokemon Crystal. You have to trade it from Pokemon Red, Blue, or Yellow.
The ones I know of is Exegcute, Beedrill, Herracross and Aipom. I'm pretty sure there are some more that I don't know of.
There is no Groudon in Pokémon Crystal.
On Pokemon Diamond you have to spread honey on a tree then there is a 10% chance it will be a heracross.
You can find it in Pokemon Platinum, Pokemon Crystal, Pokemon HeartGold, and Pokemon SoulSilver.
You cannot find Squirtle in Pokémon Crystal.
you find all the Pokemon
There is no such thing as a Crystal Onix in the Pokemon games series. It was only in the Pokemon anime.