Well, I have a favorite herb: papalo. Also called papaloquelite, quillquina, Bolivian coriander (although it's unrelated to coriander), and poreleaf. Popular in Bolivia and some parts of Mexico. Smells/tastes like a funky cilantro. Green and happy even on the hottest summer days - even my halfhearted gardening produced a bumper crop of near-perfect leaves with a texture like...if there's such a thing as "delicate leather", that's the texture. What looks like semi-opaque seeds embedded in the leaf are actually tiny oil glands (hence the "poreleaf" name).