condition mean min max Sterile Frond 12.804973333333333 2.81217 26.4257 Fertile Frond 20.57461 9.77243 38.8829 Young Stem with Root 15.512179999999999 2.96154 24.0016 Mature Stem with Root 10.655199999999999 0.0 17.5981 Root 13.271315533333334 0.0402466 23.6294