Herbalists' Cache Bury The Hatchet

"No - mushrooms." He responded, looking up at the canopy of trees. "It seems like there's enough around here to last me for a while - I want to take note of what I can come back for."

He didn't think it was necessary to give Pepper the full explanation - he wanted to keep him around if he could after all. Yapping about toxic plants likely wouldn't help with that, rather it could give the impression that he was going to harm the larger wolf.