I saw an herbalist online state that dandelion root is cool and drying- or that is how they experience it. Yet, according to our Materia Medica, it is cool and moist. This has lead me to wonder: who or what determines the energetics of a plant? Is it empirical, observed evidence over time? Can the energetics of an herb change or vary for individual? Or did this person just misunderstand the energetics of dandelion root?