condition mean min max Sterile Frond 16.71 14.2696 18.5154 Fertile Frond 15.3464 11.2174 17.8747 Young Stem with Root 13.419699999999999 10.2129 18.2474 Mature Stem with Root 15.1737 11.4671 21.141 Root 19.053033333333335 15.227 25.5041