I was hoping someone can tell me where i can plant life guide. i am a new DM and a player during a game said he wanted to collect herb,weeds and other plant life. some one please help
I assume your looking for a guide to plant life. That would depend on your campaign. The Inner Seas doesn't have such a guide. The World Guide has a small selection on notable flora and fauna, but you'll mostly have to extrapolate based on climate.
Theres another thread, I cant find it, but it talks about what nations and regions in the real world the various nations in Golarion are analogues for. If he REALLY wants to know specifically what sort of plants he can find, I'd start by figuring out what real world region is analogous to the area hes in and list a handful of plants from that region. Mix in a few fantasy-sounding plants like Trollwort and Dragontongue Berries and your good to go.
If your using your own homebrew campaign, thats even easier. Make shit up. Just Google a few medicinal plants, add in some custom ones of your own and tell him what he finds.
If you're looking for things with game rules, check the poisons section. Also the Adventurer's Armory has a lot of plant items init.
If you just want a list of what might be found, google "herb list" or something like that. Maybe 'medicinal herbs'. You could also count time spent gathering as a craft check for a healer's kit.
thank you for the help