As nouns the difference between forb and farb

is that forb is (chiefly|ecology) any non-woody flowering plant that is not a grass while farb is (us) a historical reenactor (especially a us civil war reenactor) whose efforts at a historically accurate portrayal are, in the opinion of the speaker, inadequate (for example, wearing a modern wristwatch with period costume) the opposite of farb is "hard-core" (or hardcore), someone who is, in the opinion of the speaker, an "authenticity fanatic".