Herbalism

Those with herbalist knowledge can identify plants and fungus and prepare nonmagical potions, poultices, powders, balms, salves, ointments, infusions, and plasters for medical and pseudo-medical purposes. They can also prepare natural plant poisons and purgatives. The DM must decide the exact strength of such poisons based on the Poison & Sedatives section. A character with both herbalism and healing proficiencies gains bonuses when using his healing talent (see the Healing proficiency).